The book you want is:
"Using the View Camera - A Creative Guide to Large Format Photography" (Revised Edition)
by Steve Simmons
ISBN 0-8174-6353-4 (pbk)
It's a comprehensive guide to using view cameras, but then of course the principles are exactly the same as are involved in the use of tilt-shift lenses. This book will answer all of your questions, comprehensively, without getting excessively involved in the mathematical theory and it's very readable. You can ignore the bits about film. The only thing it won't tell you is not to tighten the locking knobs on Canon's TS-E lenses too much. They're easy to break and expensive (very) to fix.