Personalized Book Monster Girl Youth T-Shirt. Youth T-Shirt - White with funny green girl monster wearing glasses, reading a book says BOOK MONSTER. Cute back to school gift for book worms, book nerds and book lovers. Let the good times roll in a durable T-Shirt that takes kids from school to play in an amazing array of colors. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar.