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 grow worldwide. 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 methodology of customer development (Customer Development). Startups are not small versions of large companies and must be run in a radically different way from established businesses; Steve Blank explains why this is so. Instead of blindly following a business plan, an entrepreneur should go through all four steps of the customer development methodology and create a feedback system that allows new hypotheses to be tested and implemented faster than competitors.