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.
The paperback edition of The Eighth Galaxy Reader edited by Frederik Pohl was printed with a different title, Final Encounter, for reasons now forgotten, and certainly led to confusion for bibliographers. The volume includes a dozen stories from Galaxy Magazine from the early half of the 1960s, during which time Pohl himself was the editor. I liked Hot Planet by Hal Clement the best, and thought the stories by Harry Harrison and Philip K. Dick were also good, as well as Pohl's posthumous collaboration with C.M. Kornbluth, Critical Mass.