"Four Steps to Enlightenment" is a classic business strategy guide that helps create successful companies, starting from an idea and ending with development. This methodology, developed by Steve Blank, is based on a scientific approach to validating hypotheses and has already helped more than 100,000 startups around the world. The author explains that startups should be managed differently than established companies and offers to go through four steps of the customer development methodology. Instead of following a business plan, entrepreneurs should build a feedback system that will allow them to test and implement new hypotheses faster.