The Damon Knight Memorial Grand Master Award is a lifetime honor presented annually by the Science Fiction and Fantasy Writers Association (SFWA) to no more than one living writer of fantasy or science fiction. It was first awarded in 1975, to Robert Heinlein, and was renamed in 2002 for Damon Knight, the Association's founder, who had died that year.The presentation is made at the annual SFWA Nebula Awards banquet, commonly during May, but it is not one of the Nebulas—which recognize the preceding calendar year's best works of SF and fantasy, selected by vote of all Association members. SFWA officers and past presidents alone submit Grand Master nominations and the final selection must be approved by a majority of that group. The recipient is announced in advance, commonly during the preceding calendar year, which is the publication year and official award year for the Nebulas. In 2023, SFWA announced the creation of the Infinity Award, which posthumously honors creators who died before they could be considered for the Grand Master Award. The first recipient of the Infinity Award was Octavia E. Butler. Source: Wikipedia (en)