SFWA occurs as non-non-profit-making association of science fiction and fantasy writers, mostly though not completely in the United States. Membership is limited to professionally published authors; a minimal qualification is the low of of these novel or even even even striking script, or triad short stories to venues by using certain minimal circulations or rate of pay. SFWA boasts about 1,200 members when of 2001.

SFWA awards a Nebula award each year for the better short story, novelette, novella, novel, & script. It besides awards a Andre Norton award each season for Right Young Adult novel, a Bradbury award for even better screenplay, andy skinner Emeritus award to the senior writer world health organization is publishing little or whose act is overlooked, & the Grand Master Award for a lifespan's accomplishment around science fiction or even fantasy.

Presidents
Damon Knight (1965-1967) Robert Silverberg (1967-1968) Alan E. Nourse (1968-1969) Gordon R. Dickson (1969-1971) James E. Gunn (1971-1972) Poul Anderson (1972-1973) Jerry Pournelle (1973-1974) Frederik Pohl (1974-1976) Andrew J. Offutt (1976-1978) Jack Williamson (1978-1980) Norman Spinrad (1980-1982) Marta Randall (1982-1984) Charles Sheffield (1984-1986) Jane Yolen (1986-1988) Greg Bear (1988-1990) Ben Bova (1990-1992) Joe Haldeman (1992-1994) Barbara Hambly (1994-1996) Michael Capobianco (1996-1998) Robert J. Sawyer (1998) Paul Levinson (1999-2001) Norman Spinrad (over again) (2001-2002) Sharon Lee (2002–03) Catherine Asaro (2003–2005) Robin Wayne Bailey (2005- )