knowledge is power.
I have a few:
Mass!
Cuts!
Joe Weider's Ultimate Bodybuilding
IronMan's Ultimate Guide to Bodybuilding Nutrition
IronMan's Ultimate Guide to Building Muscle Mass
IronMan's Ultimate Bodybuilding Encyclopedia
Bodybuilding: The Weider Approach
Sports Supplement Review: 3rd Issue
Sports Supplement Review: 4th Issue
The IronMan books costs me $5 ($4 of which was shipping); same went for Mass and Cuts, and the 4th issue of Sports Supplement Review.
The Weider books were $1.50 each, on the clearance rack of a local book store, near my kids' college.
The 3rd Issue of Sports Supplement Review was a Christmas present from 1997.