One hundred miniature speculative detonations, edited by Isaac Asimov, Martin Harry Greenberg and Joseph D. Olander.

The focus is the very short form — stories built around a single conceit, reversal, cosmic joke, philosophical sting, or compact little science-fictional trapdoor. The contributor list is stacked with classic and cult names: Larry Niven, Roger Zelazny, Robert Sheckley, Alfred Bester, C. M. Kornbluth, George R. R. Martin, Damon Knight, Fritz Leiber, Ben Bova, Frederik Pohl, James Gunn, Henry Slesar, Robert Silverberg-ish adjacent anthology energy, and plenty of lesser-known pulp/genre oddities. 

This is good for readers who like SF in compressed form: thought experiments, punchlines, weird machines, tiny apocalypses, aliens, time tricks, future bureaucracy, galactic irony, and stories that try to do in three pages what some novels fail to do in three hundred.

Pan Science Fiction paperback edition, published by Pan Books in 1980. First published in Great Britain by Robson Books in 1978. Edited by Isaac Asimov, Martin Harry Greenberg and Joseph D. Olander. Good/fair second-hand condition, with visible age toning, rubbing, cover wear, creasing, and general handling. A solid vintage reader copy.