J - General legislative and executive papers
JA - Political science (General)
JC - Political theory
JF - Political institutions and public administration
JJ - Political institutions and public administration (North America)
JK - Political institutions and public administration (United States)
JL - Political institutions and public administration (Canada, Latin America, etc.)
JN - Political institutions and public administration (Europe)
JQ - Political institutions and public administration (Asia, Africa, Australia, Pacific Area, etc.)
JS - Local government. Municipal government
JV - Colonies and colonization. Emigration and immigration. International migration
JX - International law, (obsolete, see JZ and KZ)
JZ - International relations
For more detailed information, visit the Library of Congress Classification Outline.
J - General legislative and executive papers
JA - Political science (General)
JC - Political theory. The state. Theories of the state
JF - Political institutions and public administration
JJ - Political institutions and public administration (North America)
JK - Political institutions and public administration (United States)
JL - Political institutions and public administration (Canada, Latin America, etc.)
JN - Political institutions and public administration (Europe)
JQ - Political institutions and public administration (Asia, Africa, Australia, Pacific Area, etc.)
JS - Local government. Municipal government
JV - Colonies and colonization. Emigration and immigration. International migration
JX - International law, (obsolete, see JZ and KZ)
JZ - International relations