Presentation jobs are on the rise overall since they now teach college courses in this field. When I started doing this 20 years ago I was one of a handful of people in the country. Presentation specialist jobs are skyrocketing in number but the salaries are nose diving fast. I made 75/hr for the past 15 years straight now it's common for clients to tell you they'll pay you 30-45/hour and that seems to be dropping like a lead balloon. There are a done of designers now, but quality is a huge issue I see when I advertise for freelance help on my bigger jobs. Most of the portfolio submissions are laughable. Clients don't necessarily want to see a big degree, just a solid portfolio with real world quality examples and a background experience that says you can handle the job capably. A portfolio that uses stock Microsoft templates is far from acceptable, and doesn't instill confidence. The samples don't have to be from real jobs...just look like it and show mastery of the craft. I don't want to hire PowerPoint pros that I need to teach the basics to. If your serious about presentation design intern or volunteer on a couple of real shows and you'll learn far more than you will in the average college PowerPoint design class. You'll learn real word presentation design which is far more valuable.