Book review: The Lean Startup: How Today’s Entrepreneurs Use Continuous Innovation to Create Radically Successful Businesses by Eric Ries

Artem A. Semenov
4 min readFeb 9, 2024


In his seminal work “The Lean Startup: How Today’s Entrepreneurs Use Continuous Innovation to Create Radically Successful Businesses,” Eric Ries proposes a novel, counterintuitive approach to starting a business. Given the ubiquitous nature of Ries’ methodologies in the business sphere, it seemed fitting to delve into this revered volume and unpack its significance.

Ries begins his narrative by highlighting the high failure rate of startups and introduces the concept of ‘lean startup,’ drawing parallels from lean manufacturing. At its core, his philosophy rests on the premise of iterative learning — building, measuring, and learning — underpinned by validated learning and pivot-or-persevere decisions.

Ries’ writing style is crisp and engaging, using real-world anecdotes to illustrate his points. While the book is brimming with insightful ideas, the concept of ‘minimum viable product’ (MVP) is a real standout. It emphasizes releasing an early product version to gauge customer reaction and pivot accordingly, thus challenging traditional business principles. However, the Lean Startup method may not be universally applicable, particularly in sectors where safety and regulations are paramount.

The Lean Startup is an invaluable resource to entrepreneurs, innovators, and leaders in the business world. The book’s practical, down-to-earth advice serves to demystify the startup process, making it less of an enigma for first-time entrepreneurs. Still, the Lean Startup requires a specific mindset, and its principles might be too radical for those ensconced in traditional business models.

Ries’ work has been instrumental in redefining the startup landscape, and it is impossible to discuss modern entrepreneurship without acknowledging his influence. Despite parallels with other business books, the Lean Startup has carved out a niche for itself with its distinct methodology, which makes failure an integral part of the journey to success.

In comparison to books such as Steve Blank’s ‘The Four Steps to the Epiphany,’ Ries’ focus on rapid product iterations and learning from failures sets it apart. However, the Lean Startup’s effectiveness might falter in certain situations, necessitating a more nuanced approach.

“The Lean Startup” is a transformative piece of literature, providing a revolutionary framework for running startups. It isn’t a magic formula to instant success, but a strategic guideline to navigate the treacherous waters of entrepreneurship. As we live in an era of digital disruption and rapid technological advancements, Ries’ insights seem even more critical. However, the true merit of this approach lies in its successful practical application.

While Ries’ “The Lean Startup” might not be the only playbook for entrepreneurial success, it certainly has provided a fresh perspective in a space that was in dire need of a shakeup. Despite its occasional oversimplification of complex business dynamics, the Lean Startup’s core principles of constant learning, adapting, and iterating represent a radical departure from traditional startup methodologies.

As someone deeply immersed in the startup landscape, the Lean Startup’s principles resonate with my own experiences. It offers a roadmap, a compass guiding entrepreneurs towards their true North. It encourages not just to accept failure but to embrace it, learn from it, and most importantly, to keep moving forward.

Written by a veteran in the startup field, Ries’ work illuminates the challenging journey of entrepreneurship and suggests a path towards success. With its unconventional wisdom, “The Lean Startup” is indeed a must-read for anyone embarking on a startup journey.

Practical advice that can be applied to a wide variety of business scenarios. Here are some of the most beneficial tips:

  1. Build-Measure-Learn: Ries champions this feedback loop as the core component of a lean startup. The idea is to build a product or service, measure its effectiveness in the market, and learn from the results. This cycle encourages constant iteration and improvement.
  2. Minimum Viable Product (MVP): Rather than trying to launch with a fully developed product, Ries recommends releasing a minimum viable product. An MVP is the simplest version of your product that will still attract early adopters. By getting your product to market quickly, you can gather customer feedback and make necessary changes sooner.
  3. Validated Learning: Ries emphasizes the importance of learning from each iteration of your product or service. But this learning must be validated by objective data — not just hunches or guesses. Collect data, analyze it, and let it guide your next steps.
  4. Pivot or Persevere: If your product isn’t meeting the desired goals, you have two options: pivot or persevere. To pivot means to change your strategy or product based on what you’ve learned. To persevere means to keep refining and improving what you’re doing. The key is knowing when to do which.
  5. Continuous Deployment: The Lean Startup methodology encourages continuous deployment of software, meaning frequent updates and improvements based on customer feedback. This is in contrast to the traditional method of waiting for large updates or new versions.
  6. Innovation Accounting: This is a method of measuring progress, setting up milestones, and how to prioritize work. It forces entrepreneurs to focus on what matters and provides actionable metrics over vanity metrics.
  7. Build a Cross-Functional Team: Ries argues that startups need a diverse team of people with different skill sets. A cross-functional team can quickly adapt to new information and make swift changes to the product or strategy as needed.
  8. Customer Development: The idea is to develop your customer base in parallel with your product. This means not only paying attention to your product but also understanding your customers, their needs, and their behaviors.
  9. Five Whys: When a problem occurs, instead of simply fixing it, ask “why” five times to get to the root cause of the issue. This helps to prevent the same problems from happening again.