Frogs Forever First Class Postage Stamps-5 booklets of 20

In 2019, the Postal Service™ issues Frogs stamps in a booklet of 20, featuring 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.