I thought this book was a good introduction.
I liked the informal tone, and the simple language especially. The examples used are easy to understand and the same examples tend to get expanded as you sweep through the book. This is a big help as some other books tend to create new examples for each new subsection. Thus making it difficult to see what new variables are being introduced...
As the description says, covers basic Forwards, Futures, Swaps and Options - and for Options, covers BlackScholes and Binomial pricing theory. At no stage does it claim to be a comprehensive reference for these techniques, but thats fine for people like me.
I haven't read a lot of similar books to compare and contrast with this one, but I certainly felt it was worth the money...