What investing book did you enjoy the most, or which influenced you the most to be a better investor?
If your favorite book is already listed, please up-vote. If your favorite investing book is not already listed, please add it. If you specifically don't like a book listed, you can down-vote it, but please leave a comment about why you didn't like it.
Note: Please list only one book per answer, and no duplicates.
I'll seed the list with a few I liked. :-)










