The Giant Set is a useful bodybuilding tool. Here the Weider team explain have it evolved.Source: Muscle and Fitness (Issue Aug 1980) Page #71 - Muscle & Fitness (Issue Aug 1980) Page #61 - Muscle & Fitness (Issue Aug 1980) Page #119 - Muscle & Fitness (Issue Aug 1980) Page #122 - Muscle & Fitness (Issue Aug 1980) Page #123 - Muscle & Fitness (Issue Aug 1980)