John Christopher (pen name of Sam Youd) was born in 1922 in Liverpool. His novels were popular during the 1950s and 1960s, most notably The Death Of Grass. In 1966 he started writing science-fiction for adolescents. The Tripods trilogy, the Prince in Waiting trilogy (also known as the Sword of the Spirits trilogy) and the Lotus Caves are still widely read today. Robert Macfarlane is the author of Mountains of the Mind (2003), which won the Guardian First Book Award and the Somerset Maugham Award, and The Wild Places (2007), which won the Boardman-Tasker Award. Both books have been adapted for television by the BBC. He is a Fellow of Emmanuel College, Cambridge, and writes on environmentalism, literature and travel for publications including the Guardian, the Sunday Times and The New York Times.
