A fun science picture book series for young children, a set of 12 books. - Series Name: Kagaku no Tomo (Friends of Science) - Number of Books: 12 - Target Age: For young children - Publisher: Fukuinkan Shoten - Size: Approximately 21cm x 21cm - Language: Japanese Thank you for viewing. This is a set of 12 books. Some books have stains and creases on the covers. There are no tears, and they are perfectly readable. There is a name written inside, which will be blacked out before shipping. Returns and price reductions are not accepted. Thank you for your understanding.