A lot of companies want to do Marketing, PR, Advertising and Branding but very few know the difference. Here's a simplified example of each:
I am a great cook! – Marketing
Trust me. She's a great cook! – Public Relations
I'm a great cook. I'm a great cook. I'm a great cook! – Advertising
I understand you're a great cook! – Branding
Sounds so simple, right? It can be confusing to many. Advertising is a short-term exercise and Marketing is a long-term endeavor. It's much more effective when other people talk about you in a positive manner compared to self-promotion.
Remember, you don't want to market yourself as well as advertise yourself because you don't want to seem desperate.