A highly entertaining and thought-provoking book that uses masses of unexpected examples to highlight ways in which we can all use our little grey cells more effectively. It doesn't just cover academic thinking, but also ways to maximise your brainpower in social and professional life. Sloane touches on lateral thinking, logic, philosophy, creative problem-solving and many other areas in a witty and highly readable fashion, with lots of brain-teasers and other puzzles along the way. I thoroughly enjoyed this book and would strongly recommend it as a gift for a friend or family member who needs a bit of encouragement to think more precisely or imaginatively.