What if a patron wants to find books on a certain subject?

Library of Congress Classification System: J


J      Political Science (Level 2)

J: General legislative and executive papers

JA: Political Science (General)

JC: Political theory

JF: Political institutions and public adminstration - General

JK: Political institutions and public administration - United States

JL: Political institutions and public administration - Canada, Latin America

JN: Political institutions and public administration - Europe

JQ: Political institutions and public administration - Asia, Africa, Australia, Pacific area

JS: Local government, Municipal government

JV: Colonies and colonization, Emigration and immigration, International migration

JZ: International relations