You've owned some books for years but haven't read them yet.

Sometimes when I examine my shelf I find a book I don't even remember purchasing. When did I buy this? How long have I had it? Why didn't I read it? Do I still intend on reading it? It got to a point where I had to reorganize my shelf into 'read' and 'unread' sections just to keep them straight.

You own multiple copies of the same book or series.

Do I need a box set of the Game of Thrones book series when I already own one? No, BUT these are leather bound volumes and that totally makes the $50 I'd spend on them worth it. Right? Right?!?!

Okay, in retrospect maybe buying books purely for the #aesthetic isn't a great use of money, but in my defense those books were really pretty.

You keep lists of books you want to buy in the future.

On Goodreads, on your notes app, on physical paper...and inevitably, when you do go to the bookstore, you still end up buying books that weren't on your list.

You have so many books that they don't fit on your shelf.

If you keep books on your shelves, on your night stand, in boxes on the floor, and you still find yourselves buying more books, then you might have a book buying addiction. Or you might just need bigger shelves. Whichever works.

You try to rationalize your book purchases to yourself or others.

Look, I know I probably won't be reading this 900-page book any time soon, but it was on sale for $6, so buying it was really a smart decision. At least, that's what I tell my parents when they give me a judgmental look after my order from Book Outlet arrives.