Whether you’re starting up a brand-new business or you’ve been at it for years, you probably already have the skills of your trade and the tools you need.But how good are you, really, at advertising and marketing what you do?Yes, some people seem born with the knack for selling and promoting themselves. Maybe that’s what makes advertising and marketing seem like one of those “black box” parts of a business. There’s no shortage of advice out there, but putting it to effective use and figuring out whether it really makes a difference in your business results can stymie even the















