Energy studies focuses on the extraction, manufacture, distillation, and sale of resources used to create power for maintaining societies. This ranges from traditional materials such as firewood and dung to modern sources including fossil fuels and nuclear power as well as alternative energy sources and future models.

The USA remains the world’s most popular destination for international students. Universities in the US dominate the world rankings and the country also offers a wide variety of exciting study locations. State university systems are partially subsidized by state governments, and may have many campuses spread around the state, with hundreds of thousands of students.

An associate degree is an undergraduate degree offered in the US and a few other countries. Associate degrees are a qualification below a bachelor's degree. Many students earn associate degrees during their first few years of higher education. Since they usually require about two years of study, these degrees can act either as job qualifications or as precursors to more advanced degrees.

Part time learning allows one to obtain part-time degrees even if one cannot attend school on a full-time basis. One can learn at his or own pace, gradually accumulating credits which count towards final qualification.