2019 Frog USA Forever Postage Stamps Booklets of 20

Features digital illustrations of four North American frogs: the Pacific tree frog, the northern leopard frog, the American green tree frog and the squirrel tree frog. Working with a primarily green color palette and touches of brown, artist Nancy Stahl captured the essence of each animal with enough important defining features to make each recognizable. Art director William J. Gicker designed the stamps.