This book is an excellent resource and should be on the desk of every Japanese office worker in international business. Especially if you occasionally find yourself spending hours in trying to compose a business email in English, this book will help you and save time.
This book lays out the ground work staring with a short column about how to write a business email in English. Then it moves more into detail in giving more than 1000 email messages in a variety of business situations. What makes the book really useful is the (bold-faced) key words it provides. They are fundamental phrases of email writing which come handy in business situations such as when replying and responding to inquiries effectively.
Overall, this is an invaluable tool for anyone who takes seriously writing business emails in English. It is effective in its approach, easy to read and follow, and is highly recommended. As a friend to several Japanese business people in the Bay Area, I will give them this book to help them become more familiar with how to write effective email messages in English.