One of the things I like most about L.j. Sellers' Detective Wade Jackson character, is that he does develop as a person from novel to novel. It's not just plot-driven writing although the current events issue in each book fuels the fast pace. But we care more about the stories and the series because we gradually care about Jackson. We get to know him as a father, a friend, a lover, and a medical patient. We learn to like him.
Susan Wittig Albert shares a few fantastic insights on her blog about just this subject and other challenges in keeping a series fresh. It's a must-read for writers.
What hints do all you series writers have for developing your characters over the long haul? Do you think things out a few books in advance, or do you just let the character evolve in a more organic manner from novel to novel? Leave us a comment.