Korean is spoken by millions of people living in South Korea, North Korea and in several Chinese prefectures. However, slight differences in word usage and grammar exists between the Korean language spoken by South and North Koreans. Learning Korean also involves learning dialectical differences based on tonal and idiomatic dissimilarities. However, these dialects are partially intelligible and generally pose little problem when communicating in either districts.

Academic institutions around the world award advanced diplomas to students who complete specific course requirements. The time it takes to earn an advanced diploma varies depending on the university and the particular course of study.