8 books in series

Hellboy: Artbooks

Hellboy: Artbooks is a 8-book series with 8 released primary works first released in 2004 with contributions by Dark Horse Comics, Wayne Barlowe, Guillermo del Toro, and Mike Mignola.

Mike Mignola
The Monsters Of Hellboy II
Hellboy II: The Art of the Movie
Hellboy: 25 Years of Covers
Hellboy: The First 20 Years
Mike Mignola's Hellboy Artist's Edition
Hellboy: The Art of the Movie
Mike Mignola's Hellboy Artist's Edition: Hellboy in Hell and Other Stories