Qualifications
Some people who work in marketing end up in PR as a by-product of natural talents that they have. They like to talk in front of people, they're good at gathering people together (think of the best party planner you know), they can write and have a good design sense, and they don't sit still for very long. Quite often, these people end up doing this job when they had set out to do something else.
For those of you who plan to work in PR from the very beginning, you're going to need those same qualifications and a degree. Usually, four-year degrees in public relations or marketing communications are your best entry tickets, followed closely by journalism or business. Followed distantly by musical theater.