DK Children’s is expanding its Pop Up Peekaboo series into picture books with Say Peekaboo, written by Anne Forni alongside illustrator Sebastien Braun. The first book, Valentine’s Day ...

4, p. 479. Anyone browsing at the stationery store will see an incredible array of pop-up cards available for any occasion. The workings of pop-up cards and pop-up books can be remarkably intricate.