Peter Matthiessen is an American novelist, naturalist, and wilderness writer. A co-founder of the literary magazine The Paris Review and a three-time National Book Award-winner, he has also been a prominent environmental activist. He is the author of ten novels, including Shadow Country, which won the National Book Award for Fiction in 2008, and over twenty works of non-fiction, including the international bestselling The Snow Leopard (1978), which won two National Book Awards in 1979 and 1980, and In the Spirit of Crazy Horse (1983). He is 86 and lives in New York City.