Your brand is the personality of your business. It should tell people who you are; what you do; how you do it; and where you're going.
It's the thing that differentiates you from all your competitors. In the same way that every individual is different, so is every business. The skill is in identifying what it is about your business that's different, then communicating it in such a way that your audience value it more than the offering of your competitors.
If you'd like some more brand tips, click here.