2. School of Continuing Education, Zhejiang Media College. Correspondence is a learning form of adult higher education. Other learning forms of adult higher education include amateur learning (evening university) and full-time learning (full-time). Correspondence is also a teaching method. It belongs to a learning level of higher education, mainly according to the teaching plans of various majors, sending teachers to various correspondence stations to organize face-to-face lectures and examinations during winter and summer vacations or national legal holidays.