Description:To add to longhorn24's excellent detailed review,
a) This is not a book about term structure modeling, but Tuckman ofers a very effective, get-to-the-main-issues introduction.
b) Another reviewer has noted that he would buy the book for the four first chapters (discussing basic bond math) alone, and I agree. Even where the subject is familiar, Tuckman impresses with concise and to-the-point presentation, and his analytical approach, which makes Fabozzi look superficial.
PS. Be sure to consider the book by Martellini et al.