Wattpad is my main source of books. All are unpublished and amature. Writers like to publish their books on here to try and get found, in the hopes that their books will one day get published. It's all on the internet. Just search up wattpad, and it should be there. Some of these books are already published on amazon and you can win prizes and awards, if you enter a book in a certain category. Some well known writers have a wattpad, and start out here.
Sources of books: