Synopsis
The original paperback edition from 1951, with Heinlein himself pictured on the cover in the role of D. D. Harriman. Sadly, two stories and John Campbell's long introduction, which appeared in the hardcover edition, are missing here. Stories that ARE included are "Let There Be Light," *The Roads Must Roll*, the title story (about half the book), and *Requiem*.
"synopsis" may belong to another edition of this title.
