First edition of this collection of Asimov's mid-70s nonfiction essays gathered from various sources other than The Magazine of Fantasy and Science Fiction.
NY: Doubleday & Company, 1977. Octavo (5.75 x 8.5 in.); xii, 248pp.; black papered boards backed with black cloth, gold spine lettering, in dust jacket. Light wear at spine ends, old bookstore price sticker on front pastedown. Else fine in a very good (+) jacket, with a couple of tiny chips at head of spine, mild rubbing and soiling to rear panel. Original "$8.50" price on front flap.