Mo Willems

Opposite best friends Gerald, who is careful and worrisome, and Piggie, who is clumsy and carefree, run into a problem when two birds land on Gerald's head.

"Yellow Bird has found a button and wants to share it with Red Bird and Blue Bird. This is just an ordinary button. It does not do anything when you press it. But when Red Bird and Blue Bird give it try, they are delighted to find that the button does not do nothing, and that is something!"--