This is very cute -- the International Edible Book Festival. It's held on or near April 1 every year; I was reminded of it because a library in a town down the road from me is participating. The idea is to make something edible inspired by a favourite book, or just the idea of books in general. Here are some samples:
What kind of food item would you make? I'm thinking perhaps a Bundt cake with a doll in the middle, iced like the antebellum skirts of Scarlett O'Hara... or maybe a stack of millefeuille pastry, decorated to appear like individual books of a TBR pile... this could be fun.