Professor Edzard Ernst is the world's first professor of complementary medicine. Formerly a clinical doctor, he has studied homeopathy and practiced this and many other alternative treatments. He has now built a world-class reputation for successfully applying science to test the value of alternative therapies and is regularly interviewed for TV and radio.
Dr Simon Singh has a Ph.D. in particle physics and started his career as a producer on BBC science programmes such as Horizon. He is the author of the worldwide bestsellers Fermat's Last Theorem and The Code Book. Big Bang, his history of cosmology, became a New York Times bestseller.