What does the public like? Why doesn't the public appreciate the arts? Why doesn't the public buy art? What sells (to the public)?

It seems like most art marketing conversations eventually include some comment on "what sells", "what doesn't sell", "what the public wants (or doesn't want)", etc.

Look around you! Where is this 'public' you speak of?

THERE IS NO PUBLIC!

Your potential market consists of hundreds of millions of Individuals and Small Groups, not a nameless 'public' mass. Each of these individual people and groups has their own needs and interests. Don't expect to appeal to them all, or even to most of them.

Instead, find those who you can truly relate to, and start a meaningful conversation about your vision!