I'm just going to list some of mine, because a lot of them are in storage, and it would take forever to find them & take pics. Most of mine are graphic novels.
The Essential Batman Encyclopedia
The DC Comics Encyclopedia (Updated & Expanded Version) + the 2004 edition
X-Men: Days of Future Past
Crisis on Infinite Earths (DC)
Old Man Logan
X-Men: The Complete Age of Apocalypse Vols 1-4 (all volumes)
X-Men: The Complete Onslaught Epic Book 1
House of M
Marvel 1602
Batman: The Killing Joke
X-Men: The Dark Phoenix Saga
Avengers vs X-Men
Batman: Mad Love
Spider-Man Noir: Eyes Without a Face
X-Men Noir
Marvel Noir: Wolverine & the X-Men
I told you I had a lot.