I Am Legend

From Author Wars - https://authorwars.com/publications/i-am-legend-17615.html

Overview:

Title: I Am Legend
Author: Richard Matheson
Year: 1979
ISBN-10: 0425040534
Publisher: Berkley Books
Price: $1.75
Pages: 174
Binding: Paperback
Type: Novel
Title Reference: I Am Legend
Notes:
- "Berkley Medallion Edition, August, 1971" (over) "Berkley Edition, APRIL, 1979".
- Printing not stated, no number line.
- Cover art is not credited, and there is no visible signature. Artwork credited to Murray Tinkelman on Heritage Auction site.
- Full ISBN on cover and spine, oddly just the SBN ("425-04053-4") on copyright page.
- The Berkley Medallion logo is on the spine, but the Berkley Books logo is on the front cover and the title page gives the publisher as "A Berkley Book published by Berkley Publishing Corporation".