When we read, we form pictures in our heads. I think that’s one reason it’s sometimes hard to see movies of our favorite books. They have the potential to interfere with the beloved images generated by our imagination.

Still, I love the idea of illustrating my books (or seeing them on the small/big screen). When I’m writing, I often save photos of actors/models who I think look like my characters. You can see some of these inspirations on my Pinterest site, where these cards will probably end...