This is a serious fun for number ninjas. Now kids can join in the latest craze to hit the nation and learn how to solve these seriously cool number puzzles. Easy to follow step-by-step instructions at the beginning of the book teach children how to tackle the puzzles. This book contains 101 puzzles, divided into increasing levels of difficulty. Levels one and two include helpful tips that will get beginners started and confident before they move on to become keen Kakuro kings who can solve the harder puzzles in the higher levels. The cartoons by Niki Catlow introduce a comic element to the book.