A sales position involves the give-and-take between consumers and industries as well as trade between nations. This academic field concentrates on teaching marketing and economics to understand what drives market demands and how to supply goods while strengthening the growth of a business.

The PhD is a doctoral degree, specifically called a "doctor of philosophy" degree. This is misleading because PhD holders are not necessarily philosophers (unless they earned their degree in philosophy!). That said, PhD recipients are able to engage in thought experiments, reason about problems, and solve problems in sophisticated ways.

Online or distance learning refers to the use of electronic media and information and communication technologies (ICT) in education. With online learning, one can access education at any time and from any location with an available internet connection.