Wall of Crystal, Eye of Night (1961) novelette by Algis Budrys"Repent, Harlequin!" Said the Ticktockman (1965) short story by Harlan EllisonIf You Were the Only -- (1953) short story by Richard WilsonThe Tunnel Under the World (1955) novelette by Frederik PohlThe Primitives (1966) novelette by Frank HerbertHeresies of the Huge God (1966) short story by Brian W. AldissDoor to Anywhere (1966) novelette by Poul AndersonDevil Car [Sam Murdock] (1965) short story by Roger ZelaznyThe Place Where Chicago Was (1962) novelette by Jim HarmonAuto-da-Fe (1961) short story by Damon KnightAn Elephant for the Prinkip (1960) short story by L.J. Stecher Jr.
Frederik George Pohl, Jr. was an American science fiction writer, editor and fan, with a career spanning over seventy years. From about 1959 until 1969, Pohl edited Galaxy magazine and its sister magazine IF winning the Hugo for IF three years in a row. His writing also won him three Hugos and multiple Nebula Awards. He became a Nebula Grand Master in 1993.
I've been keeping lists of books read since college. Regularly occurring during breaks from school are bursts of science fiction reading after months of more serious reading. Very little intelligence went into most of these book and author selections. Rather, I would pick up books from yard sales, junk stores and resale shops all through the year, accumulating piles to be read during these periods of freedom. Short story collections would generally be favored because at least some of the pieces within would likely be good. Novels by unknown or unremembered authors were much greater risks.
This was one such acquisition, about which I recall nothing in particular--probably read the whole thing in a sitting.