Robert Heinlein

From Author Wars - https://authorwars.com/books/robert-heinlein-1638622.html

Overview:

Title: Robert Heinlein
Author: Brad W. Foster
Year: 2008
Type: Interior Art

Editions/Publications:

2008 . Denvention 3: The 66th World Science Fiction Convention (2008, Brad W. Foster, Worldcon Denver 2008, 164 pages, Trade Paperback, Non-fiction)
2015 . Sasquan: The 73rd World Science Fiction Convention (2015, Brad W. Foster, GHLIII Press, 156 pages, Trade Paperback, Non-fiction)