A joyful, inspiring picture bookthat introduces readers to eleven young people from around the world who didn't wait until they were grown to speak up about things that matter to them and change the world for the better, froman award-winning author and New York Times best-selling illustrator.

A joyful, inspiring picture bookthat introduces readers to eleven young people from around the world who didn't wait until they were grown to speak up about things that matter to them and change the world for the better, froman award-winning author and New York Times best-selling illustrator.