Mental toolkit

A Mathematical Kaleidoscope (Albion Publishing, £14.95, ISBN 1 898563
21 7) by Brian Conolly and Steven Vajda demonstrates that useful aspects of
mathematics need not be stuffy, boring or in any sense second-rate
intellectually. Prospective readers should not, however, expect an easy ride.
Very much a labour of love, the book will serve as a fitting epitaph to Vajda
who died last December at the age of 94.