Overall Rating: 8 / 10 Ponnuki
- Title: Mastering the Basics, Volume 6: All About Ko
- Author: Rob can Zeijst and Richard Bozulich
- Publisher: Kiseido
- Publication Date: September 2007
- Number of Problems: 121 Problems
- Page Length: 250 pages
- A solid book that serves as a great reference on ko while providing problems and example games.
- Appropriate for 1 dan and stronger.
- Recommended for serious players who really want to study ko.