From renowned Japanese entrepreneur Kazuo Inamori comes a simple yet highly effective theory of successful management： “Do what is right as a human being.” In this book， Kazuo Inamori， founder of Kyocera， distills essential leadership tenets from his experiences building Kyocera， KDDI， and reorganizing JAL. Inamori’s writing have collectively sold over 25 million copies globally. This 2025 English edition of his management philosophy （originally posthumously released in Japanese in 2022） is the consummation of his life’s work： 12 principles for effectively managing your business. These 12 principles were developed in Inamori’s private academy， “Seiwajyuku，” where many small and medium−sized enterprise owners gathered to study under him. This rigorous and reality−based classroom environment produced principles that were actionable and rooted in real−world business experience， clearly explaining the fundamentals of successfully running a company. Each chapter features a lecture expounding the management principle， key points， and a Q＆A， drawing from Inamori’s personal philosophy and deep experience. Applicable to all leaders， this edition reveals the essence of Inamori’s school of management philosophy which has been practiced and proven effective across all industries and business formats.

Have you forgotten the importance of believing in yourself and others？ This book will remind you of that and show you that having imagination， creativity， and love make you strong. The author， Kazuo Inamori， was a world−renowned entrepreneur who founded Kyocera Corporation， which has brought ceramics to every continent， and KDDI， one of the largest telecommunications companies in Japan. He also lifted Japan Airlines out of bankruptcy to solid profitability as its volunteer （unpaid） chairman. Despite the impressive career， he never let his successes get to his head and continued to work for the greater good. This book is a culmination of the answers to questions he encountered through suffering and difficulties throughout his life. Chronologically， it is the first of Inamori’s many books， which have collectively sold over 25 million copies worldwide. In it， Inamori shows us the importance of finding passion and joy in one’s work， believing in oneself to overcome obstacles， and being both rational and creative at the same time. True wisdom is timeless. That’s why Inamori’s theories stand the test of time and remain popular among businesspeople today. Whether you’re a new employee， a leader of a team， or even a CEO…at each step of your life， this book will help you.