Hellboy Volume 1: Seed of Destruction
Hellboy Volume 3: The Chained Coffin and Others (2nd edition)
Hellboy Volume 4: The Right Hand of Doom (2nd edition)
Hellboy Volume 5: Conqueror Worm (2nd edition)
Hellboy Volume 6: Strange Places
Hellboy Volume 7: The Troll Witch and Others
Hellboy Volume 8: Darkness Calls
Hellboy Volume 9: The Wild Hunt
Hellboy Volume 10: The Crooked Man and Others
Hellboy Volume 12: The Storm and the Fury