Social sustainability classes typically study the use of concepts from various disciplines to make evaluations about the sustainability of several different trends that are salient to humans. Classes often look at issues such as ethics, social movements, the environment, politics and land development.

A PhD is a highly advanced degree that helps graduates become experts within a field. Earning this degree may help students be better qualified for their chosen careers as well as any other professional pursuits they may have.

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