In business, change is inevitable. Companies that fail to adapt will fail. But, unfortunately, few managers are able to carry out transformations in the company. John Kotter studied the experience of successful and failed transformations in thousands of companies and developed a universal algorithm for implementing changes. In the book you will find dozens of examples of the effectiveness or ineffectiveness of this or that approach. Here we examine in detail the eight stages of company reform, as well as the main mistakes that managers make.