There is a wonderful analogy used at the beginning of the book The E-Myth by Michael Gerber, where the author describes any entrepreneur as a company of three strongly distinct individuals: the entrepreneur, the operator/manager and the technician/craftsperson.

When we start to offer our skills and services to others, we inevitably become all three, but one of the biggest problems for a lot of us artists (pretty much the majority, really), is that we love the craft and enjoy it immensely, but have no clue or even desire to do the business part and management of our small business.