Boynton Bookworks Spring 2024 list features a picture book, novelty books, a lap board book, and a boxed set! Hippos Remain Calm is the long-awaited follow-up to Hippos Go Berserk! more than 45+ years in the making!Publisher: Simon & SchusterAuthor(s): Sandra BoyntonIllustration(s): f-c; matte lam jkt-case (no sfx); uncoated interiorNumber of pages: 40Publication date: 2024Dimensions: 263 x 237 x 12Cover type: HardbackIllustrator: Sandra Boynton