Reviews of [i]A Canticle for Leibowitz[/i] by Walter M. Miller, Jr.; [i]Next Door to the Sun[/i] by Stanton A. Coblentz; [i]From Galaxies to man[/i] by John Pfeiffer; [i]Level 7[/i] by Mordecai Roshwald; [i]The Unpleasant Profession of Jonathan Hoag[/i] by Robert A. Heinlein; [i]Handbook for Space Travelers[/i] by Walter B. Hendrickson, Jr.; [i]The Exploration of Sapce[/i] by Robert Jastrow; [i]When the Kissing Had to Stop[/i] by Constantine FitzGibbon; [i]The Mathematical Recreations of Lewis Carroll[/i] by Lewis Carroll; [i]The Story of Chemistry[/i] by Georg Lockermann; [i]Invaders from Rigel[/i] by Fletcher Pratt; and [i]Science Fiction and Fantasy Film Checklist[/i] by Walter W. Lee.