Joe Simpson is a British mountaineer, author, and motivational speaker, best known for Touching the Void, his 1988 account of a 1985 climb in Peru. During that trip he fell into a crevasse and was assumed dead by his climbing companion Simon Yates, but he survived and crawled back to base camp. The ordeal has since been adapted into a 2003 documentary film and a 2018 stage play, both titled Touching the Void.