The first edition of this book was released under digital format (eBook) in 2014. In 2015, a second edition of the eBook was released, containing, besides minor changes here and there, two important additions: Chapter VII about “the Japanese Consumer Mindset” and Chapter XI about “3 Keys for Success in Japan”. In 2017, the third edition is being released with a new Table of Contents and a revision of Chapter XI, becoming “5 Keys for Success in Japan”. This book is targeted at business executives of companies: • approaching the Japanese Market, • reviewing their options in terms of Japan Entry Strategy, • already exporting to Japan (Indirect Sales) or, • already established and doing business in Japan (Direct Sales). In this book, we show: • That the Japanese Market is a great market to approach and that, provided the right methodology and marketing mix, there are great opportunities to seize in the long-term for foreign companies. • That it is necessary to get familiar with cross-cultural differences and to understand better your Japanese clients, their country, their culture and their business system. • How to market your products or services in Japan (B2C and B2B Marketing Guidelines). • Which Entry Strategies are available to foreign companies to choose from and guidelines for selection. Keywords: Japan, Japon, Economie du Japon, Japanese Economy, Commercer avec le Japon, Doing Business with Japan, Commercer au Japon, Doing Business in Japan, Faire des Affaires au Japon, Marketing in Japan, Japan B2B Sales, Japan B2C Sales, Selling in Japan, Vendre au Japon, Exporter vers le Japon, Export to Japan, S'implanter au Japon, Set up an office in Japan, Japan Entry Strategies, Trade with Japan, Doing Business with the Japanese, Faire des Affaires avec les Japonais, Japan Cross-cultural Management, les Japonais, the Japanese