Dancing with a ball and chain

I've been wanting to do this post all week. Here are the ten books (or book series) that I consider to have been formative in my young Sageling years. These are all books I read when I was 12 years old or younger.

( I guess the Bernstein Bears should have been in here. Too late now. )

Did any of these books affect you guys as well?  What books were very important and powerful to you at a young, impressionable age? (I hear "Clan of the Cave Bear" is a common answer, by the way.)