According to the results of an analysis of thousands of Russian enterprises, in Russia the most dangerous person for a business is its owner. Many of our businesses are doomed already at the creation stage. If things do start to get going, the owner can finish him off in a hundred different ways. Trying to somehow raise and develop a business, its owners constantly make common mistakes. Moreover, these mistakes are the same among owners of completely different businesses in different parts of the country. In this book, the author tried to list the main problems that slow down the development or destroy the majority of small and medium-sized businesses in Russia. If you do not repeat at least these mistakes when building your own business, your business can already be considered exemplary.