Publishing a book is a great thing, and I'm grateful, but it's also a horrible, exposing thing. Once you've published a book, you never write quite as freely again. You're aware, from that point onward, of the kinds of things critics might say about it. You're aware of the kinds of things your publishers might like and dislike about it. You're half-aware of marketing strategies - of all the stuff around the book. Whereas with your very first piece of fiction, if you're lucky, those things barely occur to you at all.