Pigs Make Me Sneeze! An Elephant and Piggie Book

In 'Pigs Make Me Sneeze!' by Mo Willems, Gerald the Elephant believes he may be allergic to his best friend, Piggie. The two are very close, with Piggie's cheerful demeanor balancing Gerald's cautious nature. The story explores their friendship as Gerald faces the possibility of having to avoid Piggie to keep from sneezing.