Practical Recording Techniques
Bartlett, Bruce
pub. by Howard Sams.
The 2nd edition of this book will be published by Focal Press in Spring 1997.

Audio Engineering Handbook
Benson, Blair

Handbook for Sound Engineers: The new Audio Cyclopedia
ed. Ballou, Glen
SAMS

An excellent reference book. Contains over 1000 pages of information written by many authorities in the field.

Handbook of Recording Engineering
Eargle, John

Modern Recording Techniques
Runstein, Robert and Huber, David

The New Recording Studio Handbook
Woram, John and Kefauver, Alan

Sound Recording Handbook
Woram, John
SAMS

Very simply, a must-have. This text is thorough and consise - an excellent reference.

The Sound Reinforcement Handbook
Davis, Gary and Jones, Ralph
Yamaha

A good introductory book, though my edition has occasional technical errors.