Kaizen is a constant pursuit of excellence in everything we do, embodied in specific forms, methods, technologies and addressed to people. Although the concept of kaizen was born in Japan, it has become widespread throughout the world and has convincingly proven its effectiveness many times over, not only in industry, but also in the service sector and in public organizations. This book is the primary source. Its author, M. Imai, was the first to introduce the term “kaizen” here and called on readers outside Japan to pay attention to the enormous possibilities of management in Japanese. His call did not go unnoticed. First of all, this book is addressed to heads of enterprises and organizations of all areas of human activity, of all sizes and forms of ownership. It is also of interest to managers at all levels, employees of quality services, personnel management, marketing, etc. Students and graduate students of relevant specialties will find a lot of useful information in the book. Consultants in the field of general management and quality management should not ignore it.