eladz: A new "Black Hammer by Jeff Lemire" bundle on Humble:
https://www.humblebundle.com/books/black-hammer-jeff-lemire-from-dark-horse-books PDF only, as is usually the case with Dark horse bundles.
I think it's still ongoing, so probably doesn't cover the whole series, but there are a lot of books included.
Great bundle! Only two repeats ("Black Hammer", Vol. 1 and "Sherlock Frankenstein") and it's everything that has been published in the world of "Black Hammer" until now - with the exception of a crossover with "Justice League".
Also, as far as I understand it, the story IS complete (Vol. 8 probably isn't called "The End" without reason ...) - but in November there will be a reboot with a new cast of characters ("Black Hammer: Spiral City").
Oh, and "Mazebook" seems to be the only comic in the bundle that isn't part of the "Black Hammer" universe.