Day 22 - Favorite book you own

I.... what? What kind of question is this? How does this differ from "favorite book altogether"? Is the assumption that you wouldn't own your favorite book of all time? I mean, that is possible, but also possibly unlikely???

Whatever, sorry to keep harping on these questions, guys, it is obviously something of a fixation for me for some reason.

Okay, going with a strictly literal definition...

House of Leaves, by Mark Z. Danielewski

Hah! Here it is again, just after I slipped it somewhere it didn't quite fit. Welp. If we take this question to mean "favorite book to own," there can be no other. This is a book that deserves being looked at again and again, studied just for the fun of it, reread because there is so much going on, or just opened to a random page and shown to incredulous friends. I love owning this book. So yes, of the books I own, this one has come through for me most often. I think that's an acceptable answer to a slightly redundant question, yes?