The authors focus on the problem of sustainability from the standpoint of corporate management in this book. They propose that 'sustainability management not only earns profits, but also fulfills social responsibilities while considering the environment, people, and society, and enables management to continue to have the potential to survive in the future'. In that sense, it is also related to the Sustainability Development Goals. To fulfil this aim, the authors focus on how companies should implement sustainability management through considering both the theoretical aspects and practical aspects of actual companies.From a theoretical perspective, the authors consider the construction of a business model that achieves both economic and social value, the implementation method of governance control, and the performance evaluation method. From a practical perspective, the current state of sustainability management in Japanese companies is analysed by focusing on the cases of two manufacturing companies and two service companies. In addition, since cooperation with other companies and other organizations is necessary for implementation, the authors explore the ideal form of cooperation between companies and cooperation between the private sector and local governments.