What subjects do the call letters cover?
Subclass L Education (General).
Subclass LA History of education.
Subclass LB Theory and practice of education.
Subclass LC Special aspects of education.
Subclass LD Individual institutions: United States).
Subclass LE Individual institutions: America (except United States).
Subclass LF Individual institutions: Europe).
Subclass LG Individual institutions: Asia, Africa, Indian Ocean islands, Australia, New Zealand, Pacific Islands.
Subclass LH College and school magazines and paper.
Subclass LJ Student fraternities and societies, United States.
Subclass LT Textbooks.