Zee, Staying Alive in Avalanche Terrain is the book I recommend most to those wanting to learn about traveling in the backcountry. It covers everthing you need to know for a Level I avalanche course, and pretty much all the stuff for a Level II. It's a great book, entertaining, and informative. I read it in something like two days, and I have read most of it every season for the last 5 years. I read it before taking my Level I and what a difference it made. Once you get on snow and have an instructor showing you what's up, it really connects the dots.