Comic Book

What is the first book in the series of illustrated books Hellboy?

I want to read the series Hellboy, but it seems there are several types pounds. What is the first book in the original Hellboy comic book series? (Or graphic novels, watever)

Here is the official site, and information from Wikipedia: http://en.wikipedia.org/wiki/Hellboy http://www.hellboy.com/index.html Hope this helps.

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