Bad Science by Ben Goldacre.
EVERYONE should read this book. I read it in a couple of days on my recent holiday. I just couldn't put it down! It made me laugh, made me angry and changed the way I look at things.
The book deals with the misrepresentation of science in the media, schools, the NHS and society in general. I have an interest in this sort of thing anyway, but I still learnt loads of interesting stuff, including an insight into the pharmaceutical industry and how they conduct their trials. The sections on homeopathy and self appointed nutritionists are particularly enlightening.
I don't read many books, but I'm so glad I read this one!