Most people understand what the job of a public relations manager is - you're the face of whichever company or individual you represent. For that reason, you need to have an immaculate appearance, incredible communication skills and an understanding of media politics. A great public relations manager can minimize the impact of bad news, and amplify the benefits of good news. That's why the role is sometimes referred to as 'spin doctor' - you're putting a spin on events to make people see them the way you want them to be seen.
Behind the scenes, PR managers will constantly be working on marketing campaigns, monitoring news sources and dictating employee conduct to ensure it's consistent with the image of a business. It's a full-on job which often comes with long hours, and you'll need a degree in communications to be considered for any role.