People have been drawing on walls since ancient times. They do it to create beauty, to tell a story, to make a statement, or just to say, “I was here.” You can find wall art in a remote cave in Patagonia and a desert castle in Jordan, a kingly palace in the Republic of Benin and the National Palace of Mexico, a miles-long flood channel in Los Angeles and a sky-high rooftop in Norway. Award-winning author, illustrator, and muralist Mary Ann Fraser takes readers on a worldwide journey.