This blogger has the Great War covered!
(Oh, come on, you wouldn’t have been able to resist the joke, either.)
He has a collection of 6,000 books. Of those, he says, about 2,000 are WWI titles. Don’t miss the link to his essay for AbeBooks, written as the UK Book Collector of the Year.
I found this link via our blogger friend George Simmers of Great War Fiction: