There's a couple books I would suggest reading.
"Running a 21st Century Small Business" by Randy W. Kirk
"The E Myth Revisited" by Michael E. Gerber
Both books have a ton of information. I was able to check out both at my local library at no charge. I always have 2-3 business books on my desk. From sales and marketing, to accounting, to general business books. The more I read, the more I learn that I really didn't know a whole lot about running a business.