The British Science Fiction Association (BSFA) annually presents four awards (though numbers have differed in previous years) based on a vote of BSFA members and recently also members of the Eastercon. ... Eastercon is the common name for the British National Science Fiction Convention, which since the 1960s has been held over the four-day Easter holiday weekend although the traditional numbering of the conventions goes back to 1948, when the national convention was held over the three-day Whit bank holiday...
BSFAAward - definition of BSFAAward in Encyclopedia
The British Science Fiction Association (BSFA) annually presents four awards (though numbers have differed in previous years) based on a vote of BSFA members and recently also members of EasterCon.
Special Award: The Encyclopedia of Science Fiction ed.