Here is a set of 4 books in a box. Each small book is 3 1/2 wide x 4" high. Titles are: Cat Crazy (a pop up book), The Purrfect Little Book Of Cats, Smitten With Kittens, and Cats: A Feline Potpourri. The publisher describes this as "Four Keepsake Little Books Celebrating the Fabulous Feline". Four little books for children of all ages.