Deliberately try to find mistakes in the unofficial manual. This is a powerful learning technique. When you discover a typo or a missing absolute value, you are engaging in advanced mathematical editing.
Gamelin Complex Analysis Solutions Manual: A Comprehensive Guide for Students Gamelin Complex Analysis Solutions Manual
For nearly every problem in Gamelin, there is a thread on Math StackExchange. While not a "manual" per se, the collective intelligence of these forums acts as a dynamic, interactive solutions manual. Deliberately try to find mistakes in the unofficial manual