Martin Gardner (October 21, 1914 – May 22, 2010) was an American mathematics and science writer specializing in recreational mathematics, but with interests encompassing micromagic, stage magic, literature (especially the writings of Lewis Carroll), philosophy, scientific skepticism, and religion. He wrote the Mathematical Games column in Scientific American from 1956 to 1981 and the Notes of a Fringe-Watcher column in Skeptical Inquirer from 1983 to 2002 and published over 70 books.
Gardner was famously shy and declined many honors when he learned that a public appearance would be required if he accepted. However, in 1993 Atlanta puzzle collector Tom Rodgers persuaded Gardner to attend an evening devoted to Gardner's puzzle-solving efforts. The gathering was repeated in 1996, again with Gardner in attendance, which convinced Rodgers and his friends to make the gathering a regular event. It has been held since then in even-numbered years near Atlanta, and the program consists of any topic which could have been touched by Gardner during his writing career. The event is called "Gathering for Gardner", and is written "G4Gn", with n being replaced by the number of the event (the 2010 event thus was G4G9). Gardner only attended the 1993 and 1996 events.
Read more on the Gathering For Gardner (G4G) Web Page.