Medium-sized businesses are the basis of the economy of any developed country in the world. However, the difficulties faced by mid-tier companies are not always obvious: they are not as flexible and mobile as startups, they do not have such a margin of safety as giant companies. Managers of medium-sized businesses have to deal every day with a huge number of problems that stand in the way of prosperity and development of the organization. Robert Sher, an expert in strategic planning in this particular sector of the economy, talks about the main seven obstacles to growth in his book. He interviewed more than a hundred executives, analyzed the activities of dozens of companies and, based on the data obtained, compiled a list of the main “silent killers” of medium-sized businesses and told how to deal with them. The book will be of interest not only to owners of medium-sized businesses, but also to heads of departments of large companies that face with similar problems in your practice.