Clasificación de la Biblioteca del CongresoA

20th century literature(177) academic(110) American(233) animals(331) antique(80) archives(107) art(1,078) art history(215) audience(34) biography(662) biology(221) books about books(209) Britannica(287) chemistry(193) children(697) children's(802) classic(489) classics(1,389) compilation(114) conservation(164) cultural criticism(92) cultural history(154) cultural studies(273) culture(621) Curiosities and wonders(360) design(192) dictionaries(302) dictionary(987) economics(400) education(1,177) educational(102) England(300) English literature(239) essay(387) ethics(171) exhibit(141) fantasy(760) folklore(177) games(163) general information(70) general knowledge(560) General Reference(187) general science(66) geography(301) handbook(154) history(5,084) history of science(181) how-to(202) Humanities(116) humor(3,197) ideas(97) informational(196) intellectual history(133) interpretation(96) journalism(328) juvenile(214) kids(240) knowledge(477) language(465) learning(228) liberal arts(55) lists(396) literary criticism(448) literature(1,860) math(490) Miscellanea(227) miscellany(357) moral philosophy(85) museums(1,621) natural science(126) nature(305) occult(297) oddities(107) paranormal(390) poetry(1,095) politics(724) pop culture(401) psychology(784) random facts(24) reference(14,974) religion(710) research(161) science(3,662) science fiction(1,258) sets(89) sff(784) short fiction(120) signs(88) skepticism(102) society(133) sociology(510) statistics(219) strange(56) Swedish(159) symbolism(182) Theology(285) travel(349) usa(226) vr(329) weird(104) weirdness(61) world(160) writing(219)