How Staying at my Friend's Place made me feel as if I was in a Bad 1970s Horror Movie

We stayed at a friend's place in Brooklyn recently and this was on the bookshelf in our room: A little odd, right? Though I like that it says "with" and not "on."

They also had this prominently displayed:
I fear there's a reason that gnome is sticking his finger in the air, and I'm positive I don't want to know why.