Cover by John Schoenherr. Stories: A Case of Identity by Randall Garrett, The Risk-Takers by Carolyn Meyer, The Machmen by James Schmitz, Sheol by Piers Anthony and H. James Hotaling, Sleeping Planet (serial) by William R. Burkett Jr. Analog Science Fiction and Fact is the longest-running science fiction magazine. The Brass Tacks of science fiction, also considered Scientist Fiction b/c getting facts right is as important as plot line. George R.R. Martin described Analog as having "the reputation of being hard-nosed, steel-clad, scientifically rigorous, and perhaps a bit puritanical." The "it-could-happen" sci-fi magazine and winner of numerous Hugo and Nebula Awards.