Graphic novels are booming in popularity. It’s changing children’s relationship with books

Whenever we have a free afternoon, my nine-year-old and I visit our favorite bookshop. By now, we have a routine. Ella makes a beeline to the graphic novels. Her favorite books—such as Smile, Roller Girl, and The New Girl—are part of a new genre of graphic novels that has emerged over the past decade-and-a-half specifically targeted at eight-12-year-olds. The books’ illustrations are colorful and fun, but the stories tackle serious issues: Mending broken relationships; confronting...