This is a sweet, somewhat philosophic book about a baby baboon's first experiences in the world. Throughout the baby baboon's day, he comes across different sensory experiences: green forest, slow turtles, hot fires and he tries to understand the world around him. As he settles down to sleep, he realizes that the world is big. Hallensleben's impressionist-style illustrations are beautiful and dreamlike and show the warm, caring relationship the little baboon has with its mother. It's a beautiful book that toddlers and preschoolers can relate to as they also are experiencing and trying to make sense of the world around them. My active two year old liked this book and it (usually) kept his attention.