101books

Here is a selection of go/weiqi/baduk books, featuring a total of 12'961 problems:

Tesuji:

(8k) Seedling Project
(5k) Lee Chang-ho's Selected Tesuji Problems
(3k) Fighting and Escaping
(1k) Segoe Tesuji Dictionary

Tsumego:

(8k) Go Puzzles at a Glance
(7k) Weiqi Rapid Drill 800
(7k) Compact Go puzzles to Learn the Basics
(6k) Hitomi Tsumego
(6k) 200 Basic Go Problems
(3k) Lee Chang-ho's Selected Tsumego Problems
(3k) Weiqi Life & Death Drills Beginner Level
(3k) Weiqi Life & Death 1000 Problems
(3k) Fujisawa Shuko Classroom
(1k) Maeda Tsumego
(1d) Segoe Tsumego Dictionary
(1d) Weiqi Life & Death Drills Intermediate Level
(1d) Beautiful Dan-Level Tsumego 100
(2d) Hashimoto Utaro Famous Creations
(2d) Xuanxuan Qijing
(3d) Kada Katsuji Tsumego
(3d) Showa Tsumego
(3d) Shikatsu Myoki
(4d) Heavenly Dragons
(5d) Igo Hatsuyoron

Endgame:

Problems and solutions are from www.101weiqi.com. Refer to that website for copyright information.