I’ve gotten lost in books for as long as I can remember, from the shifting staircases in J.K. Rowling’s Hogwarts to the breathtaking scenery of Spain in Beth Kephart’s Small Damages. Hovering above these worlds like an addicted reality-show viewer, I was invested but always remained an observer. These fictional people were interesting, and I could learn from them, but I couldn’t compare my life to theirs as effortlessly. In Rainbow Rowell’s Fangirl,…