‹ The Founder Bookshelf

The Lean Startup cover

The Lean Startup

How Today's Entrepreneurs Use Continuous Innovation to Create Radically Successful Businesses

Treat your startup as an experiment, not a leap of faith.

by Eric Ries

Eric Ries argues that startups are organizations built to find a sustainable business model under extreme uncertainty, not just to execute a plan. He introduces validated learning, the build-measure-learn loop, and the minimum viable product as tools to test assumptions fast. The book reframes failure as data and teaches founders when to persevere and when to pivot.

It gives founders a disciplined, capital-efficient way to test whether anyone actually wants what they are building before scaling. The build-measure-learn loop and MVP are now the default vocabulary of early-stage company building.

Where to get it