The minimum to know if you want to build muscle - for either the function or the aesthetics.
Bulking for Strength Gains
- "Is an Energy Surplus Required to Maximize Skeletal Muscle Hypertrophy Associated With Resistance Training?" at ncbi.nlm.nih.gov (Eating around maintenance with focus on protein and on micronutrients like vitamins and minerals is recommended, along with enough sleep.)
- "Stretching Doesn't Work (The Way You Think It Does)" from breakingmuscle.com
- "Fuckarounditis" from leangains.com