When a very little white lamb is born on the farm, Farmer Paul worries about the lamb's health and brings him inside the farmhouse to grow strong. Elise, the little girl who lives nearby, cares for the lamb, and names him Mr. Peanut McWoolly. He grows stronger and healthier but away from his sheep family, he begins to notice that he is different from the other animals-the dogs, the cat, and the chickens. Each time he asks why, Elise hugs him tight and tells him, "That is because everyone is different on the outside but we are all the same on the inside." When Mr. Peanut McWoolly returns to his family, will he remember why he is special, loved, and unique? An empowering book about commonality, Mr. Peanut McWoolly reminds young readers to embrace the differences in everyone.