The trick is...you have to believe in your work. If you don't believe in your own work enough to be able to sell it to someone then who will? Like everything else I have learned to do I needed an example so I found someone that is an art dealer and I spent a good bit of time picking his brain to find solutions and answers to all my fears and questions. I read sales books in my spare time and I even draw from my former life in the world of retail in order to make more sales. Bottom line is that you have to be sold on your art or no one else will be.
I will be making more posts about art sales here and if you have any questions of your own please feel free to ask. I love talking about this topic and I love to share the information I have gathered because it was a bit tricky for me as well.