I second that, it is a great book for learning about exposure.I purchased some amazing books.
2. Understanding Exposrure Brian Peterson, the best book I ever read
for photog
Also, don't get bogged down with too much information. Just learn the basics first.
Read the camera manual a couple of times and keep it handy until you're used to the camera's controls.
Learn how to use the camera's light meter to get your exposures right.
Then go out and take some shots.
Canon's website has some very good beginners guides to get you started make sure you check it out.
http://web.canon.jp/imaging/enjoydslr/index.html