John D. MacDonald

First published by Gold Medal in 1950. This 4th printing (s1052) is dated October 1960. Cover art by Barye Phillips.

First published by Dell in 1956. This second edition (B167) is dated November 1960. Cover art by Robert Abbett.

First published by Dell in 1956. This U.K. edition published by Pan (G348) is dated 1960. Cover art is not credited, though there is a signature to the right of the car (Thanks to David Roach for identifying Hans Helweg).

Originally published in the U.S. by Dell as "Area of Suspicion" in 1954. This Italian edition is number 24 in the (then) bi-weekly "Segretissimo" series published by Arnoldo Mondadori Editore on 7 April 1963. Cover art by Carlo Jacono.

Orginally published by Dell in 1954. The first Gold Medal edition was in 1961, this edition (d1528) is dated May 1965. Cover art by Barye Phillips.

First published by Dell in 1956. This first Gold Medal edition (d1579) is undated but is from 1965. Cover art by Bill Johnson.

First published by Gold Medal in April 1963, this 2nd printing (d1587) is dated October 1965. Cover art by Robert McGinnis. A comparison with the printing from 6 years later shows a reversal of the image and different cropping... www.flickr.com/photos/44319507@N08/4069224481/

First published by Gold Medal in 1963. This 2nd printing (D1599) is undated but is circa 1965.

First published by Gold Medal in January 1960. This edition (d1606) is dated December 1965. Cover art by Charles.