Kongressin kirjaston luokitusHA30.3

18th century(5) academic(25) advertising(7) analysis(32) business(199) communication(5) computer(9) computer science(7) computers(19) computing(19) correlation(7) critical thinking(31) culture(8) data analysis(65) deception(6) decision theory(6) design(12) digital(6) economics(240) economy(10) education(43) educational(5) engineering(6) experiments(5) finance(27) geography(6) grad school(8) graphic design(7) graphics(9) guide(5) hacks(5) history(18) history of science(8) how-to(14) humor(40) information technology(8) intellectual history(7) internet(5) investing(5) learning(5) lies(5) management(25) marketing(9) math(1,180) medicine(8) models(5) numbers(23) nursing(7) political economy(6) political science(14) politics(27) popular science(20) probability(68) professional(5) programming(18) psychology(146) reference(193) regression(33) research(202) rhetoric(6) school(10) science(218) self-help(5) social aspects(5) social work(13) society(5) sociology(111) software(34) statistical analysis(30) statistics(2,375) survey(18) thinking(7) usa(6) writing(7)