What Do You Know! is fun and entertaining for any age, but especially preschool and kindergarteners. Using rhyming text and beautiful illustrations, Lorinda Bryan Caulley has created an enjoyable book that will keep the youngest of readers searching for everything from pairs to pears, wrongs that don't belong and hidden objects (I still have not found the mitten!). For those who love I Spy, this is a great version for the very youngest of readers. Works best as a one-on-one sharing book.