From the Rotsler Award web site which has more information, including winners.
The annual Rotsler Award is for long-time wonder-working with graphic art in amateur publications of the science fiction community. Established in 1998, sponsored by the Southern California Institute for Fan Interests (SCIFI), it carries a $300 honorarium. The Award is ordinarily announced at Loscon, the Los Angeles sf convention held over the U.S. Thanksgiving Day weekend in November. The current judges are Mike Glyer, John Hertz, and Claire Brialey.
Bill Rotsler (1926-1997) knew everyone and did everything. He went house-hunting with Marilyn Monroe. He wrote sf. He sculpted with welded steel rods. He celebrated the West Coast Science Fantasy Conference (Westercon) as his birthday. In the sf community he was best known for graphic art, mostly in fanzines.