It was stumbling across this book that got me in to backpacking in the first place. (Yes, I was looking for teardrop trailer plans for car camping...) Very practical approach to lightweight, perfect for first-timers, and originally written for boy scouts. And it's a free download! :

http://www.kuffelcreek.com/new_release.htm

Lightweight Backpacking: The Importance of Good Form is a "Quick Start" manual for those who might be interested in the freedom of backpacking, but have been intimidated by the heavy pack weights, imagined hardships and equipment expense.

In a simple, humorous and insightful manner, Lightweight Backpacking explores the mysteries of wilderness trekking and explains how to stay warm, eat well and sleep dry without spending a fortune.