What is it in chocolate that makes us feel good when we eat it? What's the molecule that turns men on? What's the secret of Coca-Cola? In this fascinating book, John Emsley takes us on a guided tour through a rogue's gallery of molecules, some harmful some pleasant, showing how they affect our lives. There are eight galleries in all, full of individual portraits on molecules that are to be found on a daily basis in the home, the environment, and in our bodies–from caffeine to teflon, nicotine to zinc. Find out how Mozart met his death, how Hitler could have saved the Third Reich from defeat, and many more interesting snippets in this highly entertaining, and often surprising book. 'A broad audience, regardless of whether it has a background in chemistry, will enjoy browsing and reading it.' Nature 'a fine example of popular science writing at its best. It is educational, interesting, may prove inspirational and therefore deserves to find a very wide readership.' THES 'highly readable and entertaining' New Scientist