Popular science books often come in waves and at the moment we’re drowning in biologically inspired ‘ness’ books. We’ve got books on happiness, cooperativeness, pleasurableness (okay, I had to force that one), loneliness, competitiveness, and for all I know Loch Ness. When I see another one looming on the review shelf I tend to groan and reach for that DIY brain chemistry modifier, a pain killer. So when I saw Incognito looming there I was gritting my teeth for yet another dose of the same… but I couldn’t have been more wrong. It all starts with the UK cover, which has a lovely bit of op art in the squirly bit (not really obvious in the reduced version here), but the book was a dream to read. It explores how much of our actions are out of the control of our conscious mind and takes us through the wonders that are the various half-understood and often competing systems that handle the many aspects of thought and our interaction with our senses body as a whole. The first few chapte