Product details Publisher ‏ : ‎ Knopf Books for Young Readers; First Edition (July 10, 2018) Language ‏ : ‎ English Hardcover ‏ : ‎ 44 pages ISBN-10 ‏ : ‎ 0525579648 ISBN-13 ‏ : ‎ 978-0525579649