Does anybody else hope the DLC includes more in game books? For some reason I love reading these, I have all the books loaded on my phone and I just read away when I'm at work. Great stuff.

there will definitely be new books introduced
not many, but definitely a few
probably detailing the founding of the dg and maybe harkon's history with them

I never read them, I just collect them telling myself I'll read them later. Never do :/

I hope so! A 'History of the Dawnguard', perhaps? There were new books included with both Knights of the Nine and Shivering Isles, so I'd think it safe to assume there will be in Dawnguard too

I'd love some new books or maybe a return and expanded version of the Book of Life and Service and the Book of Rest and Ending. They were essentially small poetic ritualistic verses about the Soul Cairn and its Undead inhabitants.
edit - put one of those in my sig.