The idea of this book is to help build confidence with maths via a series of tests and puzzles.  After a gentle 'warm-up' section, the puzzles and tests get progressively more challenging over the course of the book.  There is a hints section for readers who get stuck, as well as a complete set of answers for every test at the back of the book.

After the 'warm-up' section, there are puzzles and tests on 'lateral thinking', 'fun with numbers',  'logic puzzles', 'geometrical puzzles' and 'difficult puzzles'. Readers will soon become familiar and comfortable with a range of tricks and tests, from magic number squares to Fibonacci numbers.

Philip Carter and Ken Russell are UK MENSA Puzzle Editors and have compiled over 100 books on all aspects of testing, puzzles and crosswords. Visit The Enigmatic World of Philip Carter at www.knowl.demon.co.uk