If you're brilliant at everything else, but lack confidence when it comes to maths, join Liz Strachan, a maths teacher with many, many years of experience, on this magical tour through the seeming mysteries of numbers, algebra and geometry.

In the same inimitable, entertaining way she did in her previous bestselling books, A Slice of Pi and Numbers Are Forever, Liz will take readers from number-phobics to mathematical know-it-alls in no time at all.

Peppered with absolutely terrible maths jokes and quirkily illustrated by Steven Appleby, this light-hearted but informative book will appeal to anyone with an enquiring mind.