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The Lean Startup book cover

Cover: Open Library

BusinessIntermediate

The Lean Startup

by Eric Ries

★★★★★ 4/5 · Poornadnyan rating

The big idea

Treat a new business as a series of experiments: build a small version, measure what customers do, learn, and adjust quickly.

Read it if…

First-time founders and product builders who are about to spend months building before talking to customers.

Skip it if…

You run a stable, established business with predictable demand.

Key ideas in 2 minutes

  1. Build – measure – learn: shorten this loop as much as you can.
  2. A minimum viable product exists to test an idea, not to impress.
  3. Decide with evidence whether to keep going or change direction (pivot).

Our review

The book that gave startups a shared language: MVP, pivot, validated learning. Some parts feel long, but the core idea can save you a year of building the wrong thing.

Read it before you build anything. Then go and talk to ten potential customers.

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