The Lean Startup by Eric Ries

Ulf Sahlin
3 min readMay 26, 2024

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The Lean Startup is a seminal guide on how to build successful startups by applying principles of lean manufacturing to the process of innovation.

Eric Ries

Ries introduces a systematic, scientific approach to creating and managing startups, emphasizing the importance of agility and iterative product development.

The core idea is to reduce waste and increase efficiency by continuously testing and validating assumptions about a business idea through real-world customer feedback. This method aims to create a sustainable business model even under conditions of extreme uncertainty.

Ries begins by explaining the concept of the Minimum Viable Product (MVP), a foundational element of the lean startup methodology. The MVP is the simplest version of a product that can be released to early adopters to gather feedback and validate hypotheses about customer needs and product-market fit.

This approach allows startups to quickly test their ideas in the market, learn from actual user interactions, and make necessary adjustments before investing significant resources into full-scale development. By focusing on validated learning, startups can avoid the pitfalls of building products based on untested assumptions.

Another critical aspect of the lean startup methodology is the Build-Measure-Learn feedback loop. Ries emphasizes the importance of rapidly building prototypes, measuring their performance in the real world, and learning from the results to inform the next iteration. This cyclical process ensures that startups are constantly improving their products based on empirical data rather than intuition or speculation.

By iterating quickly and frequently, startups can adapt to changing market conditions and customer preferences, ultimately increasing their chances of success.

Ries also addresses the importance of pivoting, a strategic decision to change direction based on the insights gained from the Build-Measure-Learn loop. When a startup discovers that its initial assumptions are incorrect, a pivot allows it to shift its business model, product offering, or target market to better align with customer needs and opportunities.

This flexibility is crucial in the early stages of a startup, where the ability to adapt and respond to feedback can mean the difference between success and failure. Ries provides numerous examples of successful pivots that have led to thriving businesses.

In the final sections of The Lean Startup, Ries explores how established companies can also benefit from lean startup principles to foster innovation and maintain a competitive edge. He discusses the concept of intrapreneurship, where large organizations create internal startups to drive new growth and innovation. By adopting a lean approach, these companies can create a culture of experimentation, continuous learning, and customer-centric development.

Ultimately, The Lean Startup offers a comprehensive framework for building resilient, adaptable businesses that can thrive in today’s fast-paced and unpredictable market. It is a must read.

Read my musings on more authors on Artificial Intelligence, Creativity, and Disruption.

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Ulf Sahlin

Usability and product discovery. Founder of numerous startups, recently acquired.