<p>Bob isn't a superhero. He's not ever trying to be kind at least at first. But when a few small unexpected thank-you's begin to shift his day something inside him begins to change. Written and illustrated by a 4th grade class <em>Thank You</em> is a heartwarming story about how little acts of kindness can grow into something big- and how anyone even someone grumpy like Bob can make a difference. </p>