I find reading about lifting, nutrition, mobility, and all other things fitness related very interesting. Just thought it would be good to have a thread (I looked for one but may not have gotten the search quite right) that amasses some of the better titles.
To start it off:
Starting Strength by Rippetoe
Practical Programming by Rippetoe
5/3/1 by Wendler
Supertraining by Mel Siff
Science and Practice of Strength Training by Zatsiorsky
Periodization by Tudor Bompa
Feel free to give your opinions of mine and add some of your own.