The Last Planet / A Man Obsessed

From Author Wars - https://authorwars.com/publications/the-last-planet--a-man-obsessed-42828.html

Overview:

Title: The Last Planet / A Man Obsessed
Author: Andre Norton, Alan E. Nourse
Year: 1955
Publisher: Ace Books
Price: $0.35
Pages: 192+127
Binding: dos
Type: Omnibus
Title Reference: A Man Obsessed
Notes:
- The Last Planet is 192 pages
  - "Complete and Unabridged" on the cover
  - Cover art by Harry Barton (from ACE Image Library)
- A Man Obsessed is 127 pages
  - "Complete Novel" on the cover
  - Cover art by Bernard Barton, according to legendaryauctions.com