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.