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What my apps do, what I've learned about building products, and the books I read along the way.
Si te llama un número que empieza por 400, es una llamada comercial. Quién la hace, si puedes devolverla y cómo bloquearla.
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Una lista de spam que se actualiza cada semana, solo tus contactos, o prefijos como el 400.
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Las llamadas comerciales en España llegan desde números que empiezan por 400. Así puedes bloquearlas todas, en español.
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Ligações 0303 são de telemarketing. Como bloquear o 0303, e por que só ele não basta desde que a Anatel tornou o prefixo opcional.
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From 17 October 2026, sales calls in Spain must come from numbers that start with 400. Here is how to block them, and why your bank and your phone company still get through.
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India's 140, Brazil's 0303, Chile's 809 and France's automated call ranges are reserved for sales and robot calls. Here is how to block them on Android with Bouncer.
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Bouncer, the spam call blocker for Android, now speaks English, Spanish, Portuguese, French, German, Italian, Turkish, Polish, Russian, Croatian and Serbian.
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Block a whole area code, country code or number prefix in one entry. Here is how number ranges work in Bouncer, and how it spots spam ranges for you.
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Silence calls from unknown numbers overnight, in working hours or at the weekend, while your contacts still ring. Here is how to set blocking hours on Android with Bouncer.
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A short, blunt book about work, written with the tone of a friend who has watched you complain about your job for a year and has decided to say something.
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Stop calls from unknown numbers on Android and let only your contacts ring. Here is how to do it in 30 seconds with Bouncer, without changing your phone app.
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Bush's follow-up to Product-Led Growth, and it's the more useful of the two because it assumes you've accepted the argument and want to know how the work is actually...
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Getting hiring right is one of the highest-leverage things a product leader does - and one of the easiest to get wrong
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Getting people pointing in the same direction - without endless meetings or false consensus
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Visualising the full customer experience to find where things break down
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Introduction to initial product discovery
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Young's argument is that improvement needs three things and that most people are missing one of them without realising which.
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Testing whether your solution is good for the business - not just for the customer
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The pragmatic hybrid that most mature product teams quietly end up using
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I went into this expecting something closer to a coaching framework and came out with something more like an oral history with good principles buried in it. That's not a...
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Forget the Funnel gave me a framework I actually want to put into practice. The premise is straightforward: a company is a value exchange, you create value for a...
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The broader data stack that sits behind product analytics - warehouses, BI tools, and the infrastructure PMs need to understand
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This book had a difficult production history: the original co-author departed mid-process and Marty Cagan took over to complete it solo. I went in skeptical, and came...
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I didn't enjoy reading this book. It's a slog. It repeats itself, loses steam in the second half, and by the end the energy has clearly gone. And yet the central promise...
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The Creative Act is one of the better books I have read on creativity, and it earns its reach. Rick Rubin's credential is not theory: he spent decades in studios with...
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There was no definitive account of Product Operations before this book. It existed as a scattering of blog posts and job descriptions, everyone borrowing the term to...
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Understanding why customers really buy - and what job they are hiring your product to do
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I already exercise, track my nutrition, and sleep reasonably well. Outlive didn't create those habits. What it did was make me understand why each of them matters at a...
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Product communities can be genuinely career-defining. The best ones create a place where practitioners get smarter together, build shared professional standards, and...
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Holistic Product Discovery works as a reference book more than a manifesto. It pulls product discovery and delivery together into one place and does a genuinely good job...
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Building a structured system for continuous access to the right customers
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Choosing the right fidelity for what you are trying to learn
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Presenting well looks effortless and isn't. This book is a reminder that the polish comes from preparation, not talent.
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The Practice is Seth Godin's argument against waiting for the right moment to create. Creativity, he says, isn't a mood or a gift you receive; it's a practice you commit...
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I run cold. Short sleep, heavy rucksacks on weekend hikes, cold showers that I will never fully enjoy. There's a pattern to it, but I'd never given it a proper...
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Defining what your product is, who it's for, and why it beats the alternative - in a way your customers actually believe
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A framework for scanning the external environment - Political, Economic, Sociological, Technological, Legal, Environmental
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I read this because 10 albums and 80 singles before breaking into the mainstream isn't a story about talent. Something else is doing the work, and I wanted to know what.
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A lightweight framework for framing a problem before you start solving it
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Building the relationships and trust that let you do good product work without constant interference
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I picked this up in the summer of 2023 expecting a motivational framework. Something about grit metrics, cold-exposure protocols, and a chapter on Navy SEALs. Instead...
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I've read more OKR books than I'd like to admit. Most of them spend the majority of their time selling you on why OKRs are brilliant, which is not the hard part. Radical...
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The first two thirds of this book are worth your time. Pressfield names the force that stops you from doing your work, calls it Resistance, and gives it enough...
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The belief that you won't be punished for speaking up - and why it's the single strongest predictor of team performance
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A one-page framework for capturing your business model before you build anything
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I went in sceptical, because books written by former executives about how their famous employer does things tend to be a long way from useful. This one is better than...
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What leadership actually requires - and how it differs from management
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I picked this up while I was already running every day and curious how far people actually take it. Cameron Hanes takes it further than most: a marathon daily...
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Testing whether users can actually use what you built - before it is too late to change it
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I was skeptical of the title before I opened the book. It sounds like recruitment material for a productivity cult. The book earns it.
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Strengths, Weaknesses, Opportunities, Threats - a classic framework that's only as useful as the honesty you bring to it
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If you work in tech and treat AI as a black box you haven't figured out how to open, this book is a good place to start. Janelle Shane explains how machine learning...
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A formula for prioritising which customer needs are most worth solving
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The foundation of every effective team - how it's built, how it's lost, and why it's worth protecting
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Time-boxed research tasks that reduce uncertainty before you commit to building
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I picked this up wanting to understand how venture capital actually decides things, having spent enough time near funded companies to notice the logic was not the one...
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OKRs are the only management framework I've seen adopted widely enough to actually matter at company scale. The methodology isn't hard to explain; getting an entire...
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A whole book about onboarding, which sounds excessive until you consider how much product effort goes into acquiring users who then leave in the first session.
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I read this expecting a Nest post-mortem and got something more useful: a book about the unglamorous middle of building things. Fadell is strongest on the parts most...
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I've spent enough of my career defending product decisions in front of skeptical stakeholders to know that being right about the design is the easy part. The hard part...
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I have hired product managers. The most common failure isn't a skills gap. It's someone technically solid who can write a sharp spec but falls apart when the job...
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McKelvey co-founded Square and wrote this partly to explain why Amazon tried to compete with them, failed, and withdrew, which is a genuinely interesting thing to want...
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A decent chunk of my job is deciding what to measure and being able to defend the choice. I went into this book expecting a working playbook for that. What I got instead...
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I came to this after Ulwick, and it answers the complaint I had about him. Ulwick makes the theoretical case for jobs to be done at length; Kalbach assumes you're...
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Product managers tend to skip this one because the cover says "UX." That is a mistake. Lean UX synthesizes Lean Startup, Design Thinking, and Agile into a coherent...
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How to validate that you are building the right thing before you build it right
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This is a short, plainly written book about what the job actually involves, and my verdict depends almost entirely on who's asking.
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This is a book for people who manage product managers, which is a much narrower audience than most product books aim at and is exactly why it's useful. Almost nothing...
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Roman is one of my favorite product management authors. His concise, to-the-point writing style is incredibly respectful of your time, and this book is no exception to...
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I have run discovery cycles using JTBD framing in real product teams. I came into this book expecting either a validation or a sharper version of what I was already...
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A book of short essays about financial behaviour rather than financial technique, and it is the rare popular book that I think is genuinely better than its reputation.
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Keeping customers actively using and finding value in your product - long after the initial sale
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What strategy actually is, why most product strategies aren't strategies, and how to tell the difference
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Bassino wrote the book about the gap between a product vision and a sprint backlog, which is exactly where most product organisations quietly fall apart.
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A history of hedge funds, read mostly out of curiosity about how people who are paid entirely on results actually think about risk.
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I read this in June 2022, when I was first seriously thinking about whether I could build something worth paying for around what I knew. Burchard's core argument landed...
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Delivering your product manually before building it - to test whether anyone actually wants it
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Olson founded Pendo, which sells product analytics, and this is a book arguing that companies should organise around the product experience. The commercial interest is...
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I read this in April 2022 when I was thinking hard about why some team structures produce fast, clean software and others produce a tangle no one can unpick. The book...
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A visual framework for connecting your desired outcome to the opportunities and solutions worth pursuing
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I first read this in March 2022, about six weeks into a new role where discovery had been largely improvised for years. The timing was fortunate.
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A book that sorts people into four colour-coded behaviour types and explains how to communicate with each. It was recommended to me repeatedly, and I finished it more...
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Andrew Chen built the clearest framework I have found for reasoning about networked products. He takes one idea, network effects, and constructs a complete architecture...
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Testing with real data to get reactions that static mockups cannot produce
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This has nothing to do with my work and it is one of the more enjoyable books I have read, so it stays on the shelf.
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A roadmap format that matches your level of confidence to your level of commitment
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Running discovery and delivery in parallel so you're always building things worth building
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Building just enough to answer whether something can be built at all
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Breaking down the wall between development and operations to ship faster and more reliably
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I came to this expecting something approaching a strategy book and left with something much narrower. Hyatt is focused almost entirely on vision: what it is, the...
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Getting changes into production reliably - and making sure the right people know when you do
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I was three years into managing product managers when I picked this up. Inspired had shaped the way I thought about the PM craft; Empowered addressed something harder to...
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Data tells you what happened. Insight tells you what to do about it. The gap between them is where most teams get stuck
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Helping people find their own answers - and why that's more effective than telling them what to do
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Virtual replicas of real-world systems that let you simulate, test, and predict without touching the real thing
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The Amazon flywheel diagram stopped me the first time I encountered it. Something about reducing a complex business to a closed loop, where each step is the cause of the...
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I read this while my team was evaluating martech infrastructure. CDPs kept coming up in vendor conversations and internal debates, and I did not have a clean mental...
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Zhuo writes the way the best managers operate: concise, purposeful, and clear about what actually matters. She covers the full arc from first-time manager anxiety to...
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The principles behind iterative software development - and why most teams are doing it wrong
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This isn't a product book and I'd stop reading it as one. It's a history of where innovation actually comes from, and its main service is demolishing the story we tell...
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What is PRD and how to write one
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Wallaert's premise is that everything we build exists to change behaviour, and that if you can't state which behaviour, in whom, under what circumstances, you don't yet...
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Shape Up arrives with opinions, which is rarer than it sounds in a product book. Ryan Singer doesn't describe a neutral framework you can adapt however you like; he...
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A book about letting the product do the selling, which is either a strategy or a way of avoiding building a sales team, and the book is more honest about that...
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Dave McClure's five-stage framework for measuring how your product acquires, activates, and retains customers
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Growth Units does one thing and does it well: it teaches you to actually calculate Customer Acquisition Cost and Lifetime Value, not just recognize the acronyms. It...
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This is the most useful book on this shelf that has nothing to do with product management, and I keep returning to it precisely because it isn't about my job.
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When I started working through what a proper design system actually requires, this was the book every practitioner pointed me toward. It was published in 2017, and that...
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Two disciplines that often get conflated - and why the distinction matters for how you structure your team
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Why discovery is not a phase - and how to make it a habit your team actually keeps
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Positioning is one of those words that everyone uses and almost nobody can define operationally. Dunford's book is the first thing I read that treated it as a solvable...
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How to ask questions that give you real signal - not polite encouragement
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Using data to group your users by behaviour, so you can understand and serve them differently
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This is a very short book about customer interviews, and the brevity is the point. You can read it in an afternoon and use it the same week.
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A human-centered approach to solving problems that puts empathy before solutions
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The Flow Framework is a compelling frame for a problem that most technology organizations genuinely have. I came to this expecting a practical guide I could run inside a...
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I keep coming back to The Mom Test whenever I'm about to run a round of discovery interviews. I first read it in June 2020, just before a discovery project, and the...
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How to coordinate a product launch so the right people know, the right message lands, and nothing falls through the cracks
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Duke was a professional poker player before she wrote about decision-making, and the book is built on one idea from that world that I think most organisations need badly.
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I read this in 2020, partway through a difficult product cycle, and parts of it landed harder than I expected. Belsky writes for people in the thick of it: the stretch...
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The phrase "outcomes over output" gets said in product rooms constantly, and most people saying it cannot give you a clean definition of either word. Seiden can. The...
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The best book I've read on validating a product idea before you build it. Cagan admits in Inspired that most features miss the mark, and the ones that land only get...
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A communication tool for where the product is going - not a delivery commitment
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Visualising where users click, move, and scroll - a fast way to see what's working and what's being ignored
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LeMay's book is the one I'd hand to someone who has just become a product manager and is quietly panicking, because it's honest about how much of the job is unglamorous...
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The most widely used agile framework - what it is, how it works, and where it breaks down
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What customers do with your product when you are not looking - and why it is your best source of ideas
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Simplicity is something I come back to constantly, in product design, in writing, in how I structure my own work. I came to this book with real appetite for it.
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A book about why change is hard and what to do about it, built on one metaphor that carries the whole thing and mostly deserves to.
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Sharing experience to help someone else navigate their path faster than you navigated yours
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How venture capital works - and what it means for the product decisions at companies that take it
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There's a moment in this book where Hal Box describes how to actually observe a building, not just walk past it. I happened to be in Seville when I reached that section...
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Few product books earn a permanent spot on my recommend list. This one does. Perri names something I had felt for years but never had language for: the moment a team...
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The craft of helping people do their best work - and what it actually takes to do it well
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Product management is a job defined by responsibility without command, so a book with this title is either going to be extremely useful or a pile of platitudes about...
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The strategic decisions behind how you price - not just what model to use, but what pricing is supposed to achieve
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Testing whether your solution can actually be built before you commit to building it
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Running controlled experiments to make product decisions with evidence, not opinion
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Setting goals that actually change behaviour - for yourself and the people you work with
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This is a book assembled largely from interviews with product leaders, and that shape determines both what it's good at and where it falls down.
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A framework for making sure you solve the right problem before you solve it right
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I read Don't Make Me Think for the first time shortly after I started working in product, and it is one of the few books I would recommend to someone on their first day...
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What makes startups different from established companies - and what that means for how product work gets done
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Growth was suddenly half my job and I wanted to know whether there was a method under the folklore. This is the closest thing to one, and its real contribution is...
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Good to Great earns its reputation as one of the great business strategy books, and it still holds up decades later. What sets it apart from most books making similar...
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Pricing is the lever most product teams touch least and the one with the most direct effect on the business, which is a strange combination and roughly why I read this.
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The future you're trying to create - and why a good product vision is worth more than a detailed roadmap
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This book earns its reputation. Before I read it, bad design was something I noticed and forgot. After, it is something I see and name: the door with a pull handle that...
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Inspired is the Product Management bible for a reason. Cagan lays out the role, the common techniques, and just as importantly, what a strong product culture actually...
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Strategy books usually fail in one of two ways. Either they're so abstract you can't act on them, or they're a case study dressed up as a method. This one avoids both by...
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Giving your team the why behind decisions so they can make better ones themselves
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Eliminating waste and maximising flow - the manufacturing philosophy that reshaped how software teams work
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A flow-based way of working that limits work in progress and makes bottlenecks visible
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Product School's introduction to product management, and it is exactly that: a survey aimed at someone who does not yet have the job.
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Giving work to others effectively - and why doing it well is harder than it looks
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Objectives and Key Results - a goal-setting framework that works when used as a thinking tool, not a reporting ritual
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Introduction to Product Discovery
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Why the best product decisions happen when product, design, and engineering discover together
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Pichler writes the way I wish more product authors did: short chapters, no anecdote padding, and a working artefact at the end of most of them. This is his book on...
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Hoffman built LinkedIn, then wrote a book arguing your career should operate like a startup. It could easily be self-serving. It isn't. The central frame, that your...
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The main ways to reach your audience - and how to choose the ones worth investing in
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Klein writes for people who have already been told to do user research and are stuck on the practical question of how, with a real team and a real deadline.
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Structured time for teams to explore ideas outside the roadmap - and why the best ones do not end in a demo
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A framework for organising engineering and product teams to optimise for flow and reduce cognitive load
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Duhigg's book explains habits as a loop of cue, routine and reward, and then applies the same structure to individuals, organisations and societies, with diminishing...
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Checklists occupy a strange position in product and operations work. Teams either dismiss them as too rudimentary or inflate them into compliance rituals that no one...
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Most lean books tell you to talk to customers and iterate, which is true and completely unactionable. Olsen is the one who bothered to write down the steps.
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A framework for understanding which features delight customers and which ones just need to work
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This book surprised me. I expected a probability primer and got something more useful: a structured argument that forecasting skill is trainable, and that the gap...
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How to Measure Anything isn't a product book, and I'd still put it on the required list for product managers. Discovery is fundamentally about reducing uncertainty...
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A former hostage negotiator writes a negotiation book, which is either going to be brilliant or an extended flex, and it's mostly the first with occasional flashes of...
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Naming is a task that arrives without warning, gets decided in a meeting by whoever is loudest, and then sticks for a decade. This is a short, funny book about doing it...
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Nudge landed on me in 2018 and the central idea has stuck: the design of choice is never neutral. Once you have that framing, you cannot look at a sign-up form or a...
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A framework for sizing your market - and why the numbers matter less than the thinking behind them
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Lean Analytics is dense, but it's dense with the right things: a genuinely practical approach to using data to build a startup, not just admire dashboards. Yoskovitz and...
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How to run customer interviews the Teresa Torres way - and why most teams are doing them wrong
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I came to this expecting a book about a specific technique and got a broader argument about why written requirements fail, with the technique as the remedy.
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One reason I love product management is the contrast it demands: strategic expansiveness alongside sweating tiny details. Saffer's book operates entirely in the detail...
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I read The Lean Startup in 2017, a few years after it had already become foundational reading in product circles. It still held up. Ries identified something that should...
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Delivering defined scope on time and budget - and knowing when that's the right tool for the job
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Why discovery in B2B is harder - and how to do it anyway
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The discipline that keeps product teams running well - and why it matters more as you scale
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A deliberately broad survey of business concepts, written on the premise that you can get most of the value of a business education by reading widely and skipping the...
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Communities of practice are one of those ideas that makes sense on a whiteboard and falls apart in execution. This book is the closest thing I have found to a practical...
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This is barely a book. It's an extended essay, readable in about ninety minutes, and I think that's the right length for what it has to say.
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The most important distinction in modern product thinking - and why most teams still get it wrong
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Testing whether your solution actually solves the problem before you build the whole thing
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The main tools for understanding how users behave in your product - and how to choose between them
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A research-based profile of your target user - useful when grounded in data, dangerous when made up
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I read this because it kept being cited, and it's a stronger book than its reputation as a founder-culture artefact suggests, provided you separate the argument from the...
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Stepping into your customer's shoes to find what research alone cannot
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Using the product itself as the primary driver of acquisition, conversion, and expansion
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I have a real soft spot for this book. I read it shortly after publication, just in time to apply it to some discovery work I was running. It is one of the few...
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Pink's argument is that the reward-and-punishment model of motivation is a poor fit for work that requires judgement, and that for anything beyond mechanical tasks it...
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Why the best product communicators think in narratives - and how to build that skill
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Dividing your market into meaningful groups so you can focus on the customers most likely to succeed with your product
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Writing a letter from your future customer to align your team before you build anything
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Value stream mapping does one thing and does it well: it gives you a repeatable way to see where work actually gets stuck. I picked this up wanting a lean-adjacent tool...
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An entire book about the observation that inputs and outputs are unevenly distributed, which is either one idea stretched to book length or a genuinely underused lens...
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A visual planning technique that keeps the user journey at the centre of your product decisions
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Why focusing on a single metric at a time produces better results than tracking everything at once
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Combining real product components with mocked elements to test ideas faster
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How information flows inside a team and organisation - and why getting it right is underrated as a product skill
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Rough, fast, and intentionally unfinished - the fastest way to test an idea before you fall in love with it
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This is one of those books whose central idea has been repeated so often that reading the original feels almost unnecessary, and then you read it and find the original...
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Understanding the market you're operating in - who's in it, what they need, and how the competitive landscape is shaped
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A parable about mice and small people in a maze, dealing with the fact that their cheese has moved. It takes under an hour to read and I have complicated feelings about...
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I read Hooked in August 2016, just as I was starting to think seriously about what makes a mobile product worth returning to. The notes have held up better than I...
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Google's framework for measuring user experience at scale - happiness, engagement, adoption, retention, and task success
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Testing multiple variables at once to find the best combination - and when it's worth the extra complexity
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When to invest in a polished, interactive prototype - and how to get the most out of one
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When to use surveys in discovery - and how to avoid the traps that make them useless
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The minimum you need to build to find out if you're building the right thing
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What culture actually is, how it forms, and why you can't fix it with a values poster
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The main ways to charge for software products - and the trade-offs each one makes
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One idea, extended to book length, and the idea is good enough that the extension is the problem rather than the premise.
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How to find out what customers will actually pay - before you set a price you'll regret
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Tracking how users move through a sequence of steps - and finding where they drop off
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One metric that captures the value your product delivers - and a set of inputs that explain how to move it
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