Author and Illustrator Gene Luen Yang encourages his kids—all readers—to take in stories in a variety of ways like through an audio book or e-reader. That said, there is something special about a printed book. As a computer scientist, he says the way he can explain the specialness of a printed book is that it can have both sequential access and random access … meaning, the reader can read the story in order or can jump around. There is something powerful in that.