This book is one of the most widely read production management publications in Japan. The book is based on training materials prepared by Toyota specialists for seminars on the Toyota production system, which took place in the mid-1970s. A lot of time has passed since then, but the book, repeatedly reprinted, including in English, still serves as a brief guide to reducing production costs around the world. Kanban and just-in-time systems the two production and inventory management methods used in Toyota’s production system help find better ways to improve process performance and product quality. The book is intended for managers seeking to reduce production losses and improve the production system of their company. It is of interest to managers of all levels and will be of interest to students whose specialty lies in the field of production and services.