Summary of a book "The Lean Startup"

The title of the book is the ‘’Lean Startup’’. Authors of the book are Eric Ries. The book was published in 2011. It was published in the United States by Crown Business. The book has 336 pages, I read pp. 1 – 56.
Eric Ries is an entrepreneur and author of the popular blog ‘’Startup Lessons Learned’’. He is a frequent speaker at business events, has advised several startups, large companies, and venture capital firms on business and product strategy, and is an entrepreneur-in-residence at Harvard Business School.
Chapter 1
In the first chapter, the author claims that he has developed a method to help start-ups launch into the market. …