Advertising is...

Advertising is the method of promoting your business through various media to your target market. It's derived from the information that´s called your marketing strategy and must always flow out of your marketing strategy. The two cannot be separated. Advertising is a reflection of well laid business plans.

Target markets and UCA´s are the foundation of strategic marketing.

It's important for all business people to have a reasonable knowledge about how to write effective advertisements if they want maximum return for there advertising dollars. You can hire a professional advertising copywriter to help you (at great expense), but it's a skill that you should learn, even if it's just the basics.