Writer John Schu and illustrator Veronica Miller Jamison are out with a new picture book that asks the question what exactly is school...for? Test prep? Socialization? This Is A School makes the case that it's a place for community and trying new things. Schu and Miller Jamison told NPR's Ailsa Chang that their own elementary school experiences were not like the ones in their book, but they hope kids today get to have diverse experiences.