BPRD is set in the HELLBOY Universe and is published by Dark Horse Comics. It's a fantastic series that is equal parts Fantastic Four, X-Files and Kolchak the Night Stalker-- good stuff. Here's what DH writes about the first volume;
The Hollow Earth, by Mike Mignola, Chris Golden, Tom Sniegoski, and Ryan Sook, reveals the Bureau for Paranormal Research and Defense's struggle to save agent Liz Sherman, and their struggle to deal with life without Hellboy. That story is collected here with rare Hellboy related stories, long sought after by fans of the Mignola's hit comic, which is soon to be a major motion picture! Reprinted here for the first time are the first solo Abe Sapien comic, Drums of the Dead, by Brian McDonald and Derek Thompson, as well as the short stories "Abe Sapien versus Science" and "Lobster Johnson: Killer Inside My Skull." If these names mean nothing to you, you've been missing out on the greatest adventure saga comics has to offer. If you do know these names, then this is the collection you've been asking for.
All of the Comic Book recommendations I’m offering are available at Brick and Mortar Bookstores, Amazon and your Local Comic Book Shop— I’d recommend That’s Entertainment in Worcester and Fitchburg, Friendly Comics in Bellingham and if you are not in the Massachusetts area go to comicbooklocator.com to find a shop near you.
The books are also available on comixology.com which offers a feature called “guided view” which makes it easy to read comics on your phone or tablet.
PREVIOUSLY RECOMMENDED GRAPHIC NOVELS AND COMICS
LOU CALE - Humanoids
HARROW COUNTY - Dark Horse
WEIRD LOVE - IDW Publishing
CITY ON THE EDGE OF FOREVER - IDW Publishing