Growing up, Mac Barnett’s mom never took their picture books off their shelves. They remained a part of his reading world, even as he grew up and could read more mature books. Maybe that choice helped Mac’s youthful spirit alight for longer. As he often notes, kids’ minds are portals to the imaginary, to making believe. For them, everything is possible: superheroes, magic, ghosts. Mac believes that open-mindedness is crucial to fully understanding and appreciating fiction, which is why he makes the argument that kids are the best audience for fiction, and in particular, picture books.