Julia is going to write us an into to the author, but I just ran across this interview that I thought you might enjoy:
"But then there's that difference of not just writing because of what it does for me, or for the pleasure of working with sentences or for entertaining my friends... that sense of that not only is what I love to do but this is what I must do. There is nothing else for me. Even after being in this profession for a number of years now, I'd gladly not face that blank page every morning. If i thought. If I hadn't faced that black page, could I sleep tonight. And I know I couldn't."