This is a set of 10 "Kodomo no Tomo" books. (1, 2, 3, 4, 6, 8, 9, 10, 11, 12) I want to sell them as a set, so individual sales are not possible. m(_ _)m - Set Contents: 10 picture books - Target Age: 0-2 years old - Publisher: Fukuinkan Shoten - Series Name: Kodomo no Tomo - Picture Book Themes: Animals, Nature - Size: Approximately 18cm x 18cm Thank you for looking.