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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! The First In A Brand-new Board Book Series On Animal (and Human) First Words By Award-winning Author And Illustrator Ethan Long.