I’ve been thinking about way back YA. Young adult books surged to the fore with Stephenie Meyer’s Twilight saga. But they must have been around before that, right? I remember reading Nancy Drew books as a kid. And one book that jumps out in my memory is May Nickerson Wallace’s The Ghost of Dibble Hollow—I found it on the shelf in the school library when I was 11 or 12. I wonder if those stories would be considered YA or middle grade in the current system of categorization—I’m thinking middle...