The books which you can learn decent knowledge about Japanese tea.
I’ve not shared such contents because most of contents are in Japanese (only one book is in English). However seeing the situation that a lot of wrong information is spread, it’s better to show the chance to learn decent knowledge.

Beginner

1. The Book of Japanese Tea (English & Japanese)

Highly recommend for the beginner. The author Per Oscar Brekell is certified Japanese tea instructor and has more than 10 years experience in Japanese tea industory. It’s written in English and the information is comprehensive and decent to learn the basic knowledge of Japanese tea.

2. お抹茶のすべて (only in Japanese)

You can learn the basic knowledge of matcha. The author Kuwabara san is tea blender in Uji and he’s quite familiar with history and culture of Uji matcha.

3. 日本茶のすべてがわかる本 (only in Japanese)

Published by Japanse Tea Instructore association. It’s summary of Japanese tea instructor text book. You can understand the outline of comprhensive knowledge as Japanese tea professional.

Intermediate

4. 茶園管理12ヵ月 (only in Japanese)

Personally recommend. The quality of Japanese tea is from both cultivation and processing. In this book you can learn the foundation of cultivation.

Online version (free) =>http://www.ochakaido.com/index033.htm

5.機械製茶の理論と実際 (only in Japanese)

Personally recommend. The quality of Japanese tea is from both cultivation and processing. In this book you can learn the foundation of processing.

Online version (free) =>http://www.ochakaido.com/index031.htm

Advanced

6. 茶生産の最新技術 (only in Japanese)

Latest information about techniques of Japanese tea cultivation.

7.新版　茶の品種 (only in Japanese)

Database of Japanese tea cultivars.

8.目で見る茶の病害虫 (only in Japanese)

Database of sickness and insects of tea tree with full of pictures.