From Marcus Pfister, creator of the bestselling Rainbow Fish series, a thoughtful book of thirteen rhyming couplets that create a calming meditation on life and the great questions it inspires, in board book format for the youngest readers. How do birds learn how to sing? What brings summer after spring? What turns the leaves from green to brown And sends them floating gently down? In thirteen engaging couplets, Marcus Pfister opens children's eyes to the wondrous mysteries all around them. It is refreshing to see a text that encourages questioning. ?Kirkus Reviews Visually appealing . . . and lets children ponder the answers. ?Booklist Maybe the questions we ask are what matter most. ?Publishers Weekly