The Penguin Book of Penguins

Peter Fretwell is an award-winning cartographer and leading scientist at the British Antarctic Survey. He pioneered the use of satellite imagery to find and monitor polar wildlife, a project that has led to him discovering almost half of the world's emperor penguin colonies. He is a fellow of the Royal Geographical Society and has completed four field seasons in Antarctica. He lives near Cambridge with his wife and family.

Lisa E Fretwell has been a working artist for over 30 years. She has exhibited her work in Smiths Gallery in London, in New York, and in non-gallery venues such as the Derngate Theatre in Northampton, The Old Town Hall in Hemel Hempstead, and the Haymarket Theatre in Leicester.