Designing Interfaces

I couldn't stop laughing when I saw Jenifer Tidwell's comment on the cover design for her book: Designing Interfaces: Patterns for Effective Interaction Design.
"Why a duck? I have no idea. O'Reilly's people picked it, not me, but I think it has something to do with the fact that Mandarin ducks are colorful, and the book was printed in full color. Also, some of their other Web books have birds on their covers. (But he's cute, isn't he?)"

This is the case you can't judge a book by its cover. A fantastic intermediate-level book about interface and interaction design, structured as a pattern language. Check it's web site for more information.