Classificação da Biblioteca do Congresso dos E.U.A. (LCC)LC93.N4

academia(47) academic(9) academics(5) anarchism(12) capitalism(11) censorship(15) children(6) Christian(18) Christianity(19) college(12) colleges(5) communism(6) cultural studies(7) culture(22) current events(8) curriculum(5) diversity(5) education(668) educational(6) ethics(9) family(5) free speech(18) freedom(6) freedom of speech(5) Germany(7) government(12) history(97) human rights(6) intellectual freedom(6) Latin America(6) law(11) Leadership(8) learning(5) liberalism(8) libertarianism(6) Marxism(7) math(7) Mexico(7) pedagogy(29) policy(15) political science(21) political theory(7) politics(149) public school(5) reference(6) reform(8) religion(103) school(20) schooling(8) schools(28) science(6) social justice(8) social policy(8) society(5) sociology(24) teaching(32) Theology(8) universities(18) usa(34)