1. Example 16, page 91: There is a missing White stone at D2.
Adrian Ghioc: The "Correct Answer" provided by the book's authors seems not being correct. In Diagram 16b, white's move numbered 4 (at J4) is wrong and that's why black succeeds. If white plays the correct move at H6, then black fails. Check this thread: http://www.lifein19x19.com/forum/viewtopic.php?f=15&t=2268
2. Example 1, page 115: There are 13 stones missing on the right hand side of the diagram. Correct diagram should contain two 7 stone high colums, of Black stones on M1 to M7 and White stones on N1 to N7, except for M5 which is White.
3. Diagram 32a - Correct Answer, page 218: Black's move numbered 4 (at A18) is wrong because white can kill black by playing at B 19. Correct black's move is at A17.