A very good Kakuro book indeed. There is a nice range of puzzles to choose from according to the skill/experience of the solver and/or how much time you have spare to devote to the puzzles at a particular time.
Contrary to one of the reviewers below; Just like Sudoku, a Kakuro puzzle should not require guessing to solve and if you are trying to solve by guessing, just like Sudoku, you'll get nowhere fast.
This book (complete with a handy table of combinations at the end) is as good as any I've found to learn and practice the Kakuro solving techniques