Paperback Quarterly, the Journal of Mass-Market Paperback History, Volume 4, Number 4, Winter 1981, contains: "Leon Skimin -- Paperback Pioneer," by Michael S. Barson, "Interview with Leon Shimkin," by Michael S. Barson, "Ace Science Fiction Special Series," by Bill Crider, "The Destroyer Series," by Will Murray, "Skeleton Covers," by Bill Crider, "Elements of Success," by Thomas L. Bonn, and "The World's Great Novels of Detection," by Don Hensley.