What does it involve?
Above all, the hallmarks of a future great salesperson are confidence, drive and clarity in communication. Sales, however, is a very broad area and can be anything from a highly technical role (selling software to sophisticated buyers) to one where relationship building skills trump all.
You can be sure that you'll be constantly challenged; the best tend to raise expectations which then have to be met. Businesses tend to acknowledge the importance of their sales team; without them not much would happen!
At its best: A fast-paced, engaging, exciting and hugely rewarding role in which you feel like a winner, relishing being constantly challenged. You're in control, selling a good product or service to reach hard but realistic targets. You're given freedom to innovate, try new channels and messages and you choose when you're on the phone.
At its worst: Ludicrous expectations sit with you - but without the support or guidance from the rest of the business needed to back that up. Expected to sit on the phone through pre-described contact lists, with a terrible success rate and selling a product which, ultimately, you don't really believe in.