Courtesy of our new 11 x 17 inch scanner/printer, my personal library, and GIMP, here are four covers that share a sort of thematic family resemblance along with a bonus cover on a slightly different theme; the artist credits, where known, are in the file names, as usual:
[CLICK IMAGES TO ENLARGE]
The cover art for Notions: Unlimited by Robert Sheckley is uncredited, and no signature is visible, but I wouldn’t be surprised if the artist turned out to be Dean Ellis.
BONUS SCAN: