The Case of the Missing Moon Rocks is a non-fiction book by Joe Kloc, a former contributing editor for Seed Magazine. It describes the efforts of both Joseph Gutheinz, a NASA Office of Inspector General Senior Special Agent turned college professor and his students to locate and find up to 79 missing Apollo 11 and 17 moon rocks and plaques that the United States government gave away to 135 nations of the world, all 50 states and its territories.