I was going to try to organize books by topics, but it's too hard to do, so I'll just list a few books.
Periodization: Theory and Methodology of Training by Bompa
(The first edition Theory and Methodology of Training was the book that introduced periodization to America.)
Block Periodization by Issurin
Principles and Basics of Advanced Athletic Training by Issurin
Strength and Power in Sport by Komi
Biomechanics in Sport: Performance Enhancement and Injury Prevention by Vladimir Zatsiorsky
Transfer of Training in Sport by Anatoliy Bondarchuk
Programming and Organization by Verkhoshansky
Fundamentals of Special Strength Training in Sport by Verkhoshansky
(Purchase the previous two on Elite FTS under Russian manuals...these are hard to read and understand as they're written in "Russki gibberish"
Special Strength Training: A Practical Manual for Coaches by Verkhoshansky
(wait for new edition)
The Stress of Life by Selye
Why Zebras Don't Get Ulcers by Sapolsky
(a book all about stress)
For weightlifting, Tommy Kono's and Arthur Dreschler's books are good.
Also, look here:
Sorry everything's so disorganized. Ask me any questions you might have, although I have not read most of these books yet.
I have most of them though.