IxTheo Classification
HB Old Testament
58,714 results
HC New Testament
[Unassigned]
23,712 results
HA Bible
19,895 results
HD Early Judaism
4,607 results
KAB Church history 30-500; early Christianity
3,368 results
HH Archaeology
2,030 results
NBF Christology
1,662 results
RF Christian education; catechetics
1,591 results
CB Christian life; spirituality
1,500 results
RE Homiletics
1,474 results
BH Judaism
1,416 results
NBC Doctrine of God
1,335 results
NBE Anthropology
1,275 results
BC Ancient Orient; religion
1,163 results
RC Liturgy
1,057 results
TC Pre-Christian history ; Ancient Near East
989 results
FD Contextual theology
977 results
RG Pastoral care
957 results
RB Church office; congregation
948 results
RA Practical theology
925 results
KDB Roman Catholic Church
899 results
NBQ Eschatology
871 results
NBK Soteriology
811 results
NBP Sacramentology; sacraments
809 results
KDD Protestant Church
793 results
NBB Doctrine of Revelation
780 results
CD Christianity and Culture
756 results
CC Christianity and Non-Christian religion; Inter-religious relations
702 results
NCA Ethics
614 results
KAG Church history 1500-1648; Reformation; humanism; Renaissance
575 results
KAJ Church history 1914-; recent history
573 results
TE Middle Ages
570 results
NCC Social ethics
567 results
TB Antiquity
563 results
NCF Sexual ethics
503 results
NBD Doctrine of Creation
500 results
KAC Church history 500-1500; Middle Ages
486 results
KDJ Ecumenism
480 results
KBN Sub-Saharan Africa
433 results
NBN Ecclesiology
428 results
KAH Church history 1648-1913; modern history
427 results
NBG Pneumatology; Holy Spirit
415 results
BF Gnosticism
401 results
RJ Mission; missiology
371 results
FA Theology
354 results
VA Philosophy
327 results
NBM Doctrine of Justification
310 results
BE Greco-Roman religions
308 results
BJ Islam
289 results
SA Church law; state-church law
273 results
SB Catholic Church law
269 results
KDG Free church
262 results
KAE Church history 900-1300; high Middle Ages
261 results
NCD Political ethics
254 results
XA Law
252 results
NAA Systematic theology
234 results
KBQ North America
226 results
KBL Near East and North Africa
214 results
CE Christian art
213 results
KBB German language area
213 results
VB Hermeneutics; Philosophy
208 results
KBM Asia
187 results
CG Christianity and Politics
180 results
ZF Education
178 results
NCG Environmental ethics; Creation ethics
171 results
ZD Psychology
167 results
KAD Church history 500-900; early Middle Ages
163 results
AD Sociology of religion; religious policy
160 results
NCE Business ethics
156 results
AA Study of religion
152 results
CA Christianity
152 results
NBH Angelology; demonology
150 results
KAA Church history
140 results
ZB Sociology
133 results
KBF British Isles
129 results
NBA Dogmatics
126 results
AB Philosophy of religion; criticism of religion; atheism
123 results
NBJ Mariology
122 results
AX Inter-religious relations
117 results
CF Christianity and Science
109 results
CH Christianity and Society
109 results
KCA Monasticism; religious orders
109 results
KCB Papacy
107 results
KDF Orthodox Church
101 results
KBD Benelux countries
100 results
KCC Councils
100 results
NBL Doctrine of Predestination
97 results
KDE Anglican Church
94 results
RD Hymnology
94 results
RH Evangelization; Christian media
90 results
KBH Iberian Peninsula
87 results
NCB Personal ethics
87 results
KAF Church history 1300-1500; late Middle Ages
85 results
NAB Fundamental theology
84 results
KBR Latin America
78 results
FB Theological education
71 results
AG Religious life; material religion
66 results
KBK Europe (East)
61 results
AE Psychology of religion
60 results
KBG France
59 results
KBJ Italy
52 results
AH Religious education
51 results
BG World religions
49 results
RK Charity work
45 results
KCD Hagiography; saints
41 results
KBE Northern Europe; Scandinavia
37 results
TK Recent history
37 results
AZ New religious movements
36 results
BL Buddhism
31 results
TD Late Antiquity
30 results
BK Hinduism, Jainism, Sikhism
29 results
ZC Politics in general
25 results
ZG Media studies; Digital media; Communication studies
25 results
KBA Western Europe
24 results
KBC Switzerland
24 results
KBS Australia; Oceania
24 results
KDH Christian sects
24 results
BB Indigenous religions
22 results
SD Church law; Protestant Church
17 results
TJ Modern history
15 results
ZA Social sciences
15 results
TA History
14 results
AF Geography of religion
9 results
BM Chinese universism; Confucianism; Taoism
9 results
NCH Medical ethics
9 results
NCJ Ethics of science
6 results
KBP America
5 results
TF Early Middle Ages
5 results
BS Traditional African religions
4 results
KDA Church denominations
4 results
SE Church law; Orthodox Church
3 results
TH Late Middle Ages
3 results
KDC Old Catholic Church
2 results
BD Ancient European religions
1 results
BR Ancient religions of the Americas
1 results
SC Church law; Anglican Church
1 results
TG High Middle Ages
1 results