San Diego Comic-Con International is a non-profit multi-genre entertainment and comic book convention held annually in San Diego, California, United States. The name, as given on its website, is Comic-Con International: San Diego; but it is commonly known simply as Comic-Con or the San Diego Comic-Con or "SDCC".
It was founded as the Golden State Comic Book Convention in 1970 by a group of San Diegans that included Shel Dorf, Richard Alf, Ken Krueger, and Mike Towry; later, it was called the "San Diego Comic Book Convention". It is a four-day event (Thursday–Sunday) held during the summer (in July since 2003) at the San Diego Convention Center in San Diego. On the Wednesday evening prior to the official opening, professionals, exhibitors, and pre-registered guests for all four days can attend a pre-event "Preview Night" to give attendees the opportunity to walk the exhibit hall and see what will be available during the convention.