One hippo, all alone, calls two hippos on the phone. So begins Sandra Boynton's classic counting story, Hippos Go Berserk! Exuberant hippopotamus guests show up in ever-increasing numbers, until an all-night party is inevitable.
Sandra Boynton is a popular American humorist, songwriter, children’s author, and illustrator. Boynton has written and illustrated more than forty books for both children and adults, as well as more than four thousand greeting cards and four music albums. She has designed—for various companies—calendars, wallpaper, bedding, stationery, paper goods, clothing, jewelry, and plush toys.