Book location in open stacks
The book collections in free access are arranged by request numbers based on the systems of the Library of Congress Classification (LCC) and the National Library of Medicine (NLM). The numbers of these classification systems have a letter-number combination. The letters stand for the different disciplines and the numbers indicate more specific subjects within each discipline.
The outline of the system for request numbers is:
A: General Works
AE: Encyclopedias
AG: Dictionaries
B: Philosophy, Psychology, Religion
BC: Logic
BD: Speculative philosophy
BF: Psychology
BH: Aesthetics
BJ: Ethics
BL: Religions
C: Auxiliary Sciences of History
CB: History of civilization & culture
CC: Archeology
D: History - General
DA: Great Britain
DB: Austria
DC: France
DD: Germany
DE: Mediterranean, Greco-Roman world
DG: Italy
DH - DJ: Netherlands
DJK: Eastern Europe
DP: Spain, Portugal
DR: Balkan
DS: Asia
DT: Africa
E/F: History - USA
E: America (General),United States
F: South and Central America
G: Geography, Anthropology, Recreation
GB: Physical geography
GF: Human ecology
GN: Anthropology
GR: Folklore
GT: Manners and customs
GV: Sports and recreation
H: Social Sciences and Business
H: Social sciences (General)
HA: Statistics
HB: Economic theory
HC: Economic history and conditions
HD: Land, agriculture, industry
HE: Transportation and communication
HF: Commerce
HG: Finance
HJ: Public finance
HM: Sociology, Social psychology
HN: Social history
HQ: Social groups; the family, gender
HS: Societies and clubs
HV: Social pathology, criminology, welfare
HX: Socialism, communism
J: Political Science
JA: Political theory
JF: Constitutional history and administration
JK: Constitutional history: more countries
JN: Constitutional history: Netherlands
JS: Local government
JV: Migration
JX: International law, human rights, international relations
K: Law
K: Law (General)
KB: Law of Belgium
KD: Law of the United Kingdom and Ireland
KE: Law of Canada
KF: Law of United States
KG: Law of EU
KH: History of Law
KI: Privat International Law
KIN: Privat International Law, Netherlands
KJ: Law of France
KK: Law of Germany
KN: Law of the Netherlands
KS: Law of Switzerland
KT: Tax Law
KTN: Tax Law, Netherlands L: Education
L: Education
L: Education (General)
LA: History of education
LB: Theory and practice
LC: Special aspects
M: Music
N: Fine Arts
N: Visual arts (General)
NA: Architecture
NB: Sculpture
NC: Drawing, design, illustration
ND: Painting
NK: Decorative arts, applied art
P: Language and Literature
P: Linguistics
PE: English language
PF: Dutch language
PN: Literature; Motion Pictures; Theatre; Journalism
PQ: France literature
PR: Anglo-American Literature
PT: Germanic literature; Dutch literature
PZ: Children's literature
Q: Science
Q Science (General)
QA: Mathematics and Computer Science
QC: Physics
QD: Chemistry
QE: Geology
QH: Biology (general)
QP: Physiology
QS: Human anatomy, Human embryology
QT: Human physiology, Personal Hygiene, Sports (medicine)
QU: Human biochemistry; Human nutrition
QV: Pharmacology, Pharmacy, Toxicology
QW: Microbiology, Virology, Immunology
QX: Parasitology
QY: Clinical Laboratory Research
QZ: Pathology, Oncology
S: Agriculture
T: Technology
T: Technology (General)
TA: Engineering (General)
TD: Environmental technology
TE: Highway engineering
TF: Railroad engineering
TG: Bridge engineering
TH: Building construction
TK: Electrical engineering; electronics
TR: Photography and Film
TS: Manufactures
TT: Handicrafts; arts and crafts
U: Military Science
W: Medicine
W: Medicine, general
WA: Public health
WB: Practice of medicine; Diagnosis; Therapy
WC: Communicable/infectious diseases
WD: Nutrition disorders; Metabolic diseases; Immunologic diseases; Animal and plant poisons
WE: Musculoskeletal system
WF: Respiratory system
WG: Cardiovascular system
WH: Hemic and lymphatic systems
WI: Digestive system
WJ: Urogenital system
WK: Endocrine system
WL: Nervous system
WM: Psychiatry
WN: Radiology
WO: Surgery
WP: Gynecology
WQ: Obstetrics
WR: Dermatology
WS: Pediatrics
WT: Geriatrics; Chronic disease
WU: Dentistry
WV: Oto‑rhino‑laryngology
WW: Ophthalmology
WX: Hospitals and other health facilities
WY: Nursing/Nursing sciences
WZ: History of medicine
