Michael Portman
Michael Portman has written at least 1 book. Their most popular book is Why Isn't Pluto a Planet? with 1 save with an average rating of -⭐.
Authorship percentage indicates primary author status - excluding introductions, forewards and other contributions.
Series
1 released bookAuthored 100% of series
Space Mysteries
Space Mysteries is a 1-book series first released in 2012 with contributions by Michael Portman.
