Running Lean is Missing Manual to the Lean Methodology that focuses on actionable tactics to help you vet your startup idea. If you're considering building an application using Lean methodology, you are wasting your time by not following the path Ash has laid out in this book.

Ash Maurya does it again with the 3rd edition of Running Lean. He has a magical ability to distill the art and science of being a successful entrepreneur into simple, practical, and highly effective practices. If you think this is just another version of the Lean Canvas book, please think again. This is a complete system for building a successful startup born of 12 years of his work. It's a masterpiece of depth and simplicity.

Some books can help you understand how to bring a new product to life. Running Lean helps you understand whether you should bring it to life. If you're looking for an entrepreneur's guidebook to launching new products, this is it.

From passion side project (DIY flight simulator) to a growing helicopter simulator company, Running Lean has helped us stay focused on systematically building our business model.

Building the thing right is easy. Building the right thing is harder. But Ash figured it out by laying out a scientific, yet pragmatic, replicable approach. Reading this book saved years of my life. Together with my team, we halved the time it takes us to launch new apps by building — only! — what adds value to users.

The new and updated version of Running Lean is even more actionable and valuable to serial entrepreneurs and first-time founders than the original.

I have been using Running Lean's techniques and recommending it to people in incubators and accelerators for years. The 10th Anniversary edition includes great new insights and updates of the original material and at least as much brand new learning, insights and techniques on conducting good customer interviews, building minimum viable products, finding business models and more. I will be recommending this double-stuffed version both to people new to bringing innovative ideas to life, and those who were fans of the previous version.

We have leveraged Running Lean to build a grassroots movement of intrapreneurs in our organization focused on accelerating value creation for our customers through insights driven, evidence based decision making.

Having been involved in thousands of products and worked side by side with hundreds of founders, Ash's approach in Running Lean is one of the few books that I have seen that truly reflects the reality of my experiences over my 40 years career of entrepreneurship, innovation, and new product creation. Most people just talk about a process and some tools, but the simple quote of "Love the problem, not the solution" is a statement of experience and deep expertise. This book is a great starting point for first-time founders and a guide and reminder for a seasoned founder. I not only recommend this book but re-read it once a year to keep me grounded. Thank you, Ash, for putting to words what I can't.

Hands down, Running Lean is the book I've recommended the most to founders. This new edition has been informed even further by years of continuous testing and tweaking by Ash.

Ash has put together a book I wish I'd read before pursuing my own startup. The level of detail, including case studies and practical applications, make this book a resource worthy of sitting on every aspiring entrepreneur's shelf.

Ash has laid out a clear compass for anyone to validate their ideas, solve real problems and create a successful business. I'd encourage this book to anyone trying to get a business off the ground.

Lean concepts are exciting but it's hard to know what to actually do. Ash not only gives advice but makes it practicable--this is the first comprehensive guidebook for how to execute a Lean Startup. Jason Cohen

Easily one of the best technical books on Lean Startup ever written. Period. End of point. Done.