I've adopted an assumed business name (d/b/a) for my consulting practice/think tank. For people who've done the same, what job title do you use? Sole proprietor is the apt legal term. What about for business cards, linkedin, etc.? I'm thinking of using Principal rather than Owner. In LiN, I've put my business name as my company name and but am trying to decide on what title to use. I welcome any suggestions.