Worldcon, or more formally the World Science Fiction Convention, the annual convention of the World Science Fiction Society (WSFS), is a science fiction convention. It has been held each year since 1939 (except for the years 1942 to 1945, during World War II). The members of each Worldcon are the members of WSFS, and vote both to select the site of the Worldcon two years later, and to select the winners of the annual Hugo Awards, which are presented at each convention.
Activities and events at the convention typically include (but are not limited to):
Activities to fund fan and external charities (fan funds auctions, blood drives, etc.).
Art shows presenting paintings, drawings, sculpture and other work, primarily concerning science fiction and fantasy themes.
Autographing sessions, literary beer or coffee meetings, "Walks with the Stars", and other chances to meet favorite science fiction and fantasy professionals.
Awards ceremonies:
Hugo Awards, Astounding Award for Best New Writer, and Lodestar Award for Best Young Adult Book.
Chesley Awards .
Costuming - both formal competition (the "Masquerade") and casual "hall costumes" or cosplay.
Dancing - one or more dances with live music or a DJ. (LoneStarCon 3 had three dances in 2013, including a Firefly Shindig contradance and a steampunk dance.)
Exhibits - including photos of prominent fans and authors, historical displays, information about space and science, local information etc.
Huckster room, the fan term for a dealers' or vendors' room - a large hall where fans can buy books, knickknacks, games, comic books, movies, jewelry, costumes and other goods.
Fan lounge (sometimes called the "Fanzine Lounge") - A place for reading, exchanging, contributing to and talking about fanzines.
Fan tables - where fan organizations and representatives of other conventions promote their groups.
Filk and other musical performances, music circles, and workshops.
Movies - an independent film festival, and other movies rooms showing science fiction movies, television shows, etc.