You’re good at your craft. You want to spend your time making more stuff, not annoying people by schlepping your wares. Besides, that’s not your strength, right? The problem is, learning to be a good marketer really is a matter of life or death to an artist. You simply can’t make money unless people are buying your products, or coming to your shows and exhibits. But there is good news. You don’t have to spend the rest of your life hiding—boring, but safe—behind protective glass.