How to create a business and improve the business model. Coming up with an idea and then implementing it is not so difficult. It's hard to get a product to sell, to "hit the market" and start an unwinding spiral of growth. After reading this book, you will look at the process of implementing new ideas in a completely new way - whether you are a startup or the head of a long-running business. This is a real paradigm shift - from intuitive wanderings to a clear methodology. We tend to think that startups don't follow rules. However, just the opposite is true: the creation of a startup must be subject to a clear methodology that has strictly defined steps. Entrepreneurship is a special kind of management. The main idea of the Lean Startup method developed by the author is to quickly test new product ideas with real consumers and constantly adjust the business model in order to start large-scale investments only when the idea is confirmed by facts.