In this video from Reading Rockets, Rudine Sims Bishop, professor emerita from Ohio State University, speaks on Mirrors, Windows and Sliding Doors as metaphors for diversity in children’s-YA literature.
See also Rudine Sims Bishop: In Appreciation by Sam Bloom from Reading While White and Mirrors, Windows, Sliding Glass Doors & Curtains, featuring Debbie Reese, from Writing the Other.