Where to Start with Eric Ries: A Reading Guide
Where to start with Eric Ries — how to approach The Lean Startup, the book that introduced Build-Measure-Learn and the minimum viable product to mainstream business thinking. A complete reading guide.
By Marcus Webb
Eric Ries (born 1978) is an American entrepreneur, author, and investor who developed the Lean Startup methodology from his experience as co-founder and CTO of IMVU, a social network company where he spent two years building features customers didn’t want before developing an alternative approach to product development. The Lean Startup (2011) codified that methodology and became one of the most influential business books of the decade — introducing concepts that are now foundational vocabulary in technology product development and entrepreneurship worldwide.
Where to Start: The Lean Startup (2011)
The essential Eric Ries — and the book that changed how the technology industry thinks about building products. The Lean Startup opens with a diagnosis: the dominant model for building a startup before this book involved raising money, spending a year or more building a product in private, and launching with optimism about customer response. This model produced spectacular, expensive failures — not because the founders were incompetent but because the model gave them no mechanism for finding out, until very late and at great cost, whether they were building something customers actually wanted.
Ries experienced this failure personally at IMVU, where he spent two years building a product based on assumptions about what users wanted that turned out to be wrong. The Lean Startup is his account of the alternative methodology he developed afterward, and its central concept is the Build-Measure-Learn loop.
The loop works as follows. Build the smallest possible version of your product that tests the most important assumption you are currently making about your customers — what Ries calls the Minimum Viable Product. The MVP is not a rough version of your final product; it is a tool for generating specific learning about whether a key assumption is true. Measure how real customers interact with it, using metrics that reveal genuine learning rather than vanity metrics (total users, page views) that make you feel good but tell you nothing about whether the business is working. Learn from the data: does it confirm your assumption or contradict it? Then decide to pivot or persevere.
The pivot is one of the book’s most important contributions. Pivoting is not abandoning a startup because it’s failing; it is a structured course correction based on learning. You pivot when the data shows that the current fundamental assumption is wrong and a different hypothesis is worth testing. The discipline of pivoting based on data — rather than persisting on the basis of sunk cost or ego — is where most teams fail, and The Lean Startup provides both the analytical framework and the permission to make that change.
Validated learning — the idea that startup progress should be measured by what you have learned about customers rather than by what you have built — is the philosophical core of the methodology. Features shipped is an output metric; it tells you what your team has done. Validated learning about whether customers want what you are building is the only metric that predicts whether the business will work.
The book extends these principles beyond technology startups to corporate innovation teams and any organisation facing uncertainty about what customers want — arguing that the Lean methodology is applicable wherever assumptions about markets and customers need to be tested before large resource commitments are made.
Reading Eric Ries
The Lean Startup is Ries’s essential and most widely read book. Readers who want to continue should move to The Startup Way (2017), which extends the methodology to large organisations and corporate innovation.
For the full Eric Ries bibliography, reviews, and biography, visit the Eric Ries author page on Editors Reads.
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Frequently Asked Questions
Where should I start with Eric Ries?
The Lean Startup: How Today's Entrepreneurs Use Continuous Innovation to Create Radically Successful Businesses (2011) is Ries's essential book — the text that introduced Build-Measure-Learn, the minimum viable product, and validated learning to mainstream business thinking. Ries developed the methodology from his experience nearly destroying a startup by building the wrong product for two years without customer feedback, and it has since become foundational to how technology companies, product teams, and innovators across industries approach building new products.
What is The Lean Startup about?
The Lean Startup argues that the traditional approach to building a startup — raise money, build a product in secret, launch with fanfare, hope customers come — is a recipe for waste. The alternative is the Build-Measure-Learn loop: build the smallest possible version of your product that tests a key assumption (the Minimum Viable Product), measure how real customers interact with it using actionable metrics, learn from the data, and decide whether to pivot or persevere. The goal is to make this loop as fast as possible, because every week spent building without customer feedback is a week of potentially building the wrong thing.
Is The Lean Startup only relevant for technology startups?
No — Ries argues explicitly that the methodology applies to any organisation facing uncertainty about what customers want. He covers corporate innovation teams, government organisations, and non-profits alongside technology startups, and the principles (validated learning, minimising waste, using data to make pivot or persevere decisions) are industry-agnostic. The most direct application is technology product development, but the underlying thinking about how to test assumptions before committing resources is applicable wherever uncertainty is the primary challenge.
What should I read after The Lean Startup?
After The Lean Startup, Marty Cagan's Inspired provides the product management framework for running the discovery process that Lean Startup methodology requires. Steve Blank's The Startup Owner's Manual covers customer development — the process of interviewing customers to validate assumptions — in the most operational detail available. Peter Thiel's Zero to One provides the contrarian counterpoint: the argument that startups should aim to build monopolies through radical innovation rather than iterating toward product-market fit.
