Trust Your Intuition, Too
Sometimes, however, a writer has a strong sense that they need to write the whole book first. You can do that. I’m a big believer in intuition. Just be sure you understand that it’s possible your agent or publisher requests changes and you may end up having to make changes to an already written work. So, it can save time to write the proposal first, with just a couple of sample chapters. On the other hand, it can take some pressure off to have a few more chapters done before you sign a book deal.