Hi! is the first in a board book series on animal (and human) first words by award-winning author and illustrator Ethan Long.

A string of comically stylized animals greet each other in masterfully rhyming couplets--an owl’s ＂hoo＂ is answered by a cow’s ＂moo＂; a crow’s ＂caw＂ is returned with a donkey’s ＂hee-haw＂--all leading up to the ＂hi!＂ and ＂good-bye!＂ of a human toddler and his mom!