Giles Sparrow studied astronomy at University College, London, and science communication at Imperial College, before embarking on a career in publishing. Starting out as an editor, he worked on various science reference books for young readers, including DK's Eyewitness series and their larger Visual Encyclopedia series. He is now a popular science author with a string of beautiful and successful books for adults and children under his belt, including Universe: The Definitive Visual Guide, Cosmos, Spaceflight, Exploring the Solar System series, and many others.