Easy does it

Maths duffers, especially, will get a real kick out of understanding Why Do
Buses Come in Threes? by Rob Eastaway and Jeremy Wyndam. Get to grips with the
travelling salesman problem, the intricacies of placing bets and why animals
don’t have wheels. Hooked? You will be. Published by Robson Books, £12.95,
ISBN 186105162.