Maximize Your Brainpower: 1000 New Ways to Boost Your Mental Fitness (The IQ Workout Series)
by Philip Carter,Ken Russell
ISBN 13: 9780470847169
Format: Paperback (240 pages) Publisher: Wiley Published: 12 Aug 2002
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Test Your IQ: 400 Questions to Boost Your Brain Power
ISBN 13: 9780749456771
Format: Illustrated (176 pages) Publisher: Kogan page Published: 03 Sep 2009 Other Format: Paperback