Have an Answer?
1. I would advice you to use social media marketing such as Facebook or LinkedIn. You can create a facebook page for your firm and invite your friends and colleagues to like/follow. In fact, you can post your published novels on facebook so that your friends can see and socialize.
2. I would also recommend using word-of-mouth advertising as it works in most start-up cases.
3. You could use Amazon as a platform to sell your published novels. Most people use Amazon for buying books and other things.
4. Use LinkedIn groups. You can easily find focus groups & discussions on LinkedIn centered around books and novels. You can publish your recent work artifacts and generate discussion among people.
By using a combination of the above four strategies, you should be able to increase your sales of your published works.