1960 paperback original by Horowitz in Australia and Signet in the US
cover art by Barye Phillips
given date is 1959 Dutch edition
1967 Signet reissue – cover art by Robert McGinnis
McGinnis sketch for Signet reissue cover
cover art by McGinnis for 1972 Signet reissue
1961 Signet paperback original
cover art by Barye Phillips
1962 Horwitz International Edition
1968 Signet reissue – cover art by Ron Lesser
1950 Signet reissue with new title
cover art by Barye Phillips
1957 Signet reissue – cover art by Robert Maguire
1957 Horwitz paperback original
1958 Signet edition – cover art by Barye Phillips
better image than previously posted
rewritten/reissued version of No Law Against Angels
1961 Horwitz International edition
1969 Horwitz International edition
cover art by Robert McGinnis
1956 Gold Medal paperback original
all cover art by Barye Phillips
better image than previously posted
10th with private eye Shell Scott
1953 Gold Medal paperback original
cover art by Barye Phillips
his seventh novel under his name. his supervisors at the CIA thought it was great cover for an agent to be a writer
1956 Crest edition – cover art by James Meese
better image than previously posted
1958 Crest – cover art by Darcy (Ernest Chiriacka)
1961 Gold Medal reissue – cover art by Barye Phillips
better image than previously posted
undated Fawcett Gold Medal reissue – cover art by Robert McGinnis
SMB Noir 
