Fine art marketing aspirations

I have begun to entertain the notion of marketing my paintings for fun and profit, because I could use a lot more of both. In the early 80's I sold a few oil paintings at a local consignment shop but they went out of business and took three of my paintings with them. My fine art marketing skills are limited to say the least. I have an opportunity to rent 10' x 10' sidewalk space in early May. For $50 they provide the space and hopefully paying customers, but nothing else. I have some homework to do.