The Lean Startup – Eric Ries (Review)
Eric Ries’ startup playbook for rapid innovation, validated learning, and sustainable growth.

Summary
The Lean Startup introduces a framework for building startups through rapid experimentation, validated learning, and iterative product releases. Eric Ries advocates for testing assumptions early to minimize waste and maximize chances of success.
Who This Book Is For
- Startup founders and entrepreneurs
- Product managers and innovators in established companies
- Anyone interested in agile, experiment-driven business growth
Key Takeaways
- Build-Measure-Learn: Rapid cycles for testing and adapting ideas.
- Minimum Viable Product (MVP): Launch fast with the smallest feature set to learn.
- Validated Learning: Decisions guided by data, not assumptions.
- Pivot or persevere: Use insights to change direction or double down.
Strengths
- Practical and actionable startup framework
- Reduces waste by focusing on validated learning
- Influential methodology widely adopted in tech and beyond
Weaknesses
- Geared heavily toward tech/startup contexts
- Less applicable for creative work or industries requiring long development cycles
Verdict
A must-read for entrepreneurs and innovators. The Lean Startup transforms how new ventures approach risk, experimentation, and growth.
Rating: ★★★★☆ (4.5/5)