I've had several Kakuro books, and this is probably the one I like least. The puzzles are too small, even the ones towards the end where you'd expect nice big complex ones. And what is probably worse, the paper it's printed on is the wrong sort for writing in pencil, and for rubbing out. It has a very poor surface so that pencil marks come out very faint, and it's so rough that an eraser just clogs up with strands of paper. You'd think the publisher would realise that puzzles like Kakuro and Sudoko involve as much rubbing out as writing, wouldn't you? Not recommended.