David Acheson's extraordinary little book makes mathematics accessible to everyone From very simple beginnings he takes us on a thrilling journey to some deep mathematical ideas On the way via Kepler & Newton he explains what calculus really means gives a brief history of pi & even takes us to chaos theory & imaginary numbers Every short chapter is carefully crafted to ensure that no one will get lost on the journey Packed with puzzles & illustrated by world famous cartoonists this is one of the most readable & imaginative books on mathematics ever written