26 books • 7 series
Book #7: Handicap Go
Book #9: Encyclopedia of Go Principles (Mastering the Basics) (Volume 9)
Book #10: Get Strong at Attacking
Book #2: One Thousand and One Life-and-Death Problems
Book #3: Making Good Shape
Book #11: Sabaki - The Art of Settling Stones
Book #12: Attacking and Defending Weak Groups
Book #4: Five Hundred and One Tesuji Problems
Book #3: The Basics of Life and Death
Book #4: A Survey of the Basic Tesujis
Book #5: Opening and Middle Game Go Problems for Kyu Players