Clash of Kings (Game of Thrones #2)

This book is the basis for the second season of Game of Thrones. Unlike the first season, there were several variations from the book. A love interest was introduced for both Robb and Jon. This was not in the book at all. I'm sure the producers of the TV series felt romance was lacking (and I believe that they are correct). Also, Daenerys' dragons are stolen in the TV series, which does not happen at all in the book. They also lock Xaro in the vault and steal his money, also missing from the novel.

I think all of these changes helped to make the second season absolutely excellent, just like the first season.