Diana Wynne Jones, British fantasy author, has died of lung cancer. John O'Neill was written a eulogy on the Black Gate website. Since I can't improve on it, I suggest you read it here. Jones wrote a variety of books, from YA to adult, but my favorite is still The Tough Guide to Fantasyland, a tour guide of a generic land one might encounter in a fantasy novel. It's one of the best books on how (not) to write fantasy that I've ever read, and hilariously funny as well.