Michael Wright is a Natural Sciences graduate from Cambridge University and a member of the Association of British Science Writers. He has authored, edited, and contributed to many books in the field of wildlife, natural history, health and the environment, including: Reader's Digest Facts at Your Fingertips, Scientific American How Things Work Today; Reader's Digest Book of Amazing Facts; and Britain's Wildlife, Plants and Flowers. Giles Sparrow studied astronomy at University College London and science communication at Imperial College London. He has acted as consultant and contributor on numerous popular science books, including The Universe and How to See It, and was a major contributor to Universe. He lives in east London.