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Understanding Library of Congress Call Numbers

NEIT Library uses the Library of Congress Classification System to organize books on the shelves. Learning to read call numbers will help you locate books more efficiently and discover related materials in your field of study.

How to Read Call Numbers

Library of Congress call numbers have several parts that work together to create a unique address for each book:

TK
7895
.G3
C45
2023

Call Number Components:

Class Letters (TK): Subject area - Technology, specifically Electronics and Electrical Engineering
Class Number (7895): More specific topic within that subject
Cutter Numbers (.G3, C45): Represent the author's last name and book title
Date (2023): Publication year

How Books Are Arranged

Alphabetically by letters: A, B, C... then AA, AB, AC... then BA, BB, BC
Numerically by whole numbers: 1, 2, 10, 100, 1000 (not 1, 10, 100, 1000, 2)
Decimally by cutter numbers: .A1, .A2, .A15, .A3, .B1
Chronologically by year: 2020, 2021, 2022, 2023

Search Tip: When browsing shelves, look for books with similar call number letters - they'll be on related topics that might be useful for your research!

NEIT Programs & Call Number Areas

Use this guide to find books related to your field of study. Search our Library Catalog to locate relevant materials.

Find Books for Your NEIT Program:

Architecture & Interior Design
NA - Architecture
NK - Decorative Arts, Interior Design

Construction Management
TH - Building Construction
HD - Management

Automotive Technology
TL - Motor Vehicles, Automotive Engineering

Marine Technology
VM - Naval Architecture, Shipbuilding
VK - Navigation

Business Management
HD - Management
HF - Commerce, Marketing

Criminal Justice
HV - Social Pathology, Criminology
K - Law

Cybersecurity
QA - Computer Science
TK - Electrical Engineering, Telecommunications

Digital Media & Graphic Design
N - Fine Arts
TR - Photography
Z - Desktop Publishing, Graphic Design

Engineering
TA - Engineering (General), Civil Engineering
TJ - Mechanical Engineering
TK - Electrical Engineering

Information Technology
QA - Computer Science
T - Technology

Nursing
RT - Nursing

Health Sciences
R - Medicine
RA - Public Health

Physical Therapy
RM - Physical Therapy

Surgical Technology
RD - Surgery

Electrical Technology
TK - Electrical Engineering
QC - Physics, Electricity

HVAC Technology
TH - Building Construction, HVAC

Veterinary Technology
SF - Veterinary Medicine

Video Game Development
QA - Computer Science, Programming
GV - Games, Recreation

Library of Congress Main Classes

Understanding the basic structure of the Library of Congress system can help you navigate beyond your specific program area.

Major Subject Areas:

A: General Works
B: Philosophy, Psychology, Religion
C: Auxiliary Sciences of History
D: World History
E-F: History of the Americas
G: Geography, Anthropology, Recreation
H: Social Sciences
J: Political Science
K: Law
L: Education
M: Music
N: Fine Arts
P: Language and Literature
Q: Science
R: Medicine
S: Agriculture
T: Technology
U: Military Science
V: Naval Science
Z: Bibliography, Library Science

Finding Books

Using the Library Catalog

Search by keywords related to your topic.
Use subject headings to find related materials.
Note the call number and location information.
Check availability before heading to the shelves.

Pro Tips for Book Searching:

Browse nearby call numbers for related books on similar topics.
Check both older and newer editions of important texts.
Use Interlibrary Loan if we don't have what you need.
Ask library staff for help locating materials.

Access & Support

Need Research Help?

Email: library@neit.edu

Phone: 401.739.5000 x3409

Hours: Open 24 Hours. Library Staff Hours are Monday - Thursday, 8am - 7pm; Friday - Saturday 8am - 4pm.

Location: Library & Information Commons S105, East Greenwich Campus

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