Ansel Adams Classics
The Camera (Ansel Adams Photography, Book 1) by Ansel Adams (buy used at Abebooks.com)
The Negative (Ansel Adams Photography, Book 2) by Ansel Adams (buy used at Abebooks.com)
The Print (Ansel Adams Photography, Book 3) by Ansel Adams
View Cameras
Using the View Camera by Steve Simmons
Exposure
Understanding Exposure (Updated Edition) by Bryan Peterson
Black and White Photography Masterclass by John Garrett
Mastering Black-And-White Photography: From Camera to Darkroom by Bernhard J. Suess
Techniques of Natural Light Photography by Jim Zuckerman
Photoshop Techniques
Photoshop CS Artistry by Barry Haynes, Wendy Crumpler
Adobe Photoshop CS for Photographers by Martin Evening
Specialized Subjects
Astrophotography for the Amateur by Michael A. Covington
The Art of Infrared Photography by Joseph Paduano