So you've done it. You've landed an agent, your book's gone out on submission. Any minute now a publisher is going to snap up your book, it will hit the book shops and immediately top the best-seller lists ... you're home and hosed and on to planning your JK Rowling-esque lifestyle. Right? Wrong. Sorry to burst your bubble but these things take time. Even when it happens quickly it's not really quickly in real time. Publishing can move at a snail's pace and I've been advised