Introduction to Classification

This set of vocabulary flashcards covers the fundamental concepts, notation types, and primary categories of the LCCS and DDC library classification systems.

Library Classification System

A basis for organizing books and materials so that they can be found quickly and easily, while bringing materials on the same subject together.

Notation

The alphabets, numbers, and symbols used in a classification scheme to represent its subject.

Pure notation

A classification notation that uses only numbers ($0 - 9$) or only alphabets ($A - Z$), such as the Dewey Decimal Classification Scheme.

Mixed notation

A classification notation that uses a combination of numbers and alphabets (alphanumeric), or symbols such as $+$, $=$, $/$, and $:$.

Library of Congress Classification System (LCCS)

A system founded in 1800 used primarily in academic libraries that organizes knowledge in 21 broad categories labeled $A - Z$ using mixed notation.

LCCS Unused Alphabets

The letters $I$, $O$, $W$, $X$, and $Y$ are not in use in the Library of Congress Classification System.

Dewey Decimal Classification System (DDC)

A pure notation system that uses Arabic numerals decimally to signify various classes of subjects, commonly used in school and public libraries.

000-099

The DDC primary class for Generalities.

100-199

The DDC primary class for Philosophy & psychology.

200-299

The DDC primary class for Religion.

300-399

The DDC primary class for Social sciences.

400-499

The DDC primary class for Language.

500-599

The DDC primary class for Natural sciences & mathematics.

600-699

The DDC primary class for Technology (Applied sciences).

700-799

The DDC primary class for The arts.

800-899

The DDC primary class for Literature & rhetoric.

900-999

The DDC primary class for Geography & history.

Classmark

The specific 'address' of a book that makes shelving more consistent and retrieval more straightforward.

Universal Decimal Classification Scheme

A classification scheme that uses mixed notation including symbols such as $+$, $=$, $/$, and $:$.