An entrepreneur in a small niche market can provide solutions with little cost. Because you have the right skills, you can do so much with little cost and risk. Here's what you need when writing a book, whether publishing yourself or through other non-traditional alternatives.
1. A great book idea that needs to be developed
2. An identified customer base
3. Method to inform and provide your target market with valuable resources
4. Ability to balance career, family and other commitments.