A book in which Wool finds that taking care of an egg is a difficult task. The author's previous books include "Hello Tree", "I'm Hot", "I'm Hungry", "A New House" and "Welcome to the World". She has won several prizes for her work.A book in which Wool finds that taking care of an egg is a difficult task. The author's previous books include "Hello Tree", "I'm Hot", "I'm Hungry", "A New House" and "Welcome to the World". She has won several prizes for her work.