 The "Past Masters" columns are retrospective appraisals of so-called "classic" science fiction and fantasy authors, and include extensive bibliographies.Some of the authors covered in the "Past Masters" series include Zenna Henderson, Fredric Brown, Edgar Pangborn, and Murray Leinster.Webster was poetry editor at "Black Gate", a print fantasy magazine, for which he also wrote a column about little-known authors titled "Who?!"