July 20, 2009 marks the 40th anniversary of the first manned landing on the Moon by Neil Armstrong and Buzz Aldrin of Apollo 11. The eleven Apollo missions are a benchmark in the annals of human exploration. ''Apollo'' is a photographic commemoration of the Apollo lunar missions as seen through the eyes of its astronauts. Each of the surviving 24 astronauts from the Apollo missions has chosen a favorite photograph from his mission especially for this book. These selections are accompanied by other iconic photographs from the Apollo missions. Best-selling astrophysicist Stephen Hawking contributes a foreword; veteran journalist Michael Cabbage's introduction explores the role of the astronaut as a witness to history; and, Robert Jacobs gives a brief narrative account of each mission.