SK2 Subjects

AA General works GA Political Science RK Literature. Individual literatures
AC General reference books. Encyclopedias GN Law. Jurisprudence SA Literatures of the classical languages
AF General bibliography and biobibliography IA Geography XL Non-Western literature incl. Oriental literature in general
AK Writing systems. Scripts. Manuscripts ID Archaeology. Prehistoric archaeology YA Theatre. Opera and ballet
AO Printed books IH Anthropology YI Film and video
AT Library and information science IK Comparative religion. History of religions YL Entertainment (music-halls, variety etc.)
BA History of scholarship. Universities and research IL Ethnology and Folkloristics YM Music
BB School systems and educational systems KA Antiquity. Near Eastern and Classical cultures YZ The arts, architecture and design
BC Philosophy KL Classical cultures. Graeco-Roman culture YZX Photography
CA Christian theology LZ History ZA Mass media
DU Jewish Studies NC Jewish history and culture ZE Data processing
EA Social sciences in general OQ Precolumbian cultures ZHS Sport, games and athletics
EB Psychology PA Linguistics ZI Science
EH Sociology PG Indo-European languages  
FA Economics RA Non-Indo-European languages