Published Apr 1953 by DC.
Cover art by Win Mortimer. Superman's Secret Workshop starring Superman and Lex Luthor, script by Edmond Hamilton, pencils by Wayne Boring, inks by Stan Kaye. Twenty Thousand Leagues Under the Sea With Superman starring Superman and Little Dan Wheeler, script by Bill Finger, art by Al Plastino. Mysterious Moving Islands text story by Capt. Jeb Manton. The Superwoman From Space starring Superman, Tharka (Intro, the Superwoman), and Bowtie Barris, script by Bill Woolfolk, art by Al Plastino.