Steve Blank is one of Silicon Valley's most powerful men. "Four Steps to Insight" is a classic guide to business strategy for all time, from the inception of an idea to the creation of a successful company, with the help of which more than 100,000 startups operate and develop around the world. It was here that Steve Blank for the first time in the world formulated the only currently effective methodology for developing new products and creating new businesses based on the scientific method of testing hypotheses: the method of consumer development (Customer Development).