Let's Help the Earth is a Sesame Street book about taking care of the Earth. Elmo goes on a hike with his Mom and Dad, and he says that he wants to help the environment. His friends pitch in too -- Abby Cadabby turns out the lights when she leaves the room, Big Bird and Grover plant a community garden, Oscar the Grouch recycles, and Curly Bear learns to throw her trash into a trash can. This is a board book with flaps, tabs, and pop-ups.