G2 was a science fiction fanzine by Joe Gibson and Robbie Gibson.
G2 was released in the mid 1960s in the U.S.A.
Joe Gibson was a science fiction writer how had written for pulp magazines such as Thrilling Wonder Stories, Amazing Stories and Science Fiction Quarterly. He had begun contributing to fanzines such as Spectra by Arthur Louis Joquel, in the 1940s, and Inside in the 1950s.
Joe Gibson was awarded a Retro Hugo for best fan artist for 1946 in 1996.