The "Elephant & Piggie by Mo Willems Paperback I Am Invited to a Party!" is a fiction picture book featuring the beloved characters of Elephant and Piggie. Published by Disney Publishing Worldwide, this paperback edition is part of "An Elephant and Piggie Book Series" written by Mo Willems. With vibrant illustrations, this story is perfect for young readers and is sure to bring joy and laughter to any child's reading experience.