Library of Congress Classification/Class A

CLASS A - GENERAL WORKS

(Click each subclass for details)

Subclass AC	Collections. Series. Collected works
Subclass AE	Encyclopedias
Subclass AG	Dictionaries and other general reference works
Subclass AI	Indexes
Subclass AM	Museums. Collectors and collecting
Subclass AN	Newspapers
Subclass AP	Periodicals
Subclass AS	Academies and learned societies
Subclass AY	Yearbooks. Almanacs. Directories
Subclass AZ	History of scholarship and learning. The humanities

Subclass AC

AC1-999	Collections. Series. Collected works
AC1-195		Collections of monographs, essays, etc.
AC1-8			American and English
AC9-195			Other languages
AC200		Collections for Jewish readers
AC801-895		Inaugural and program dissertations
AC901-995		Pamphlet collections
AC999		Scrapbooks

Subclass AE

AE1-(90)	Encyclopedias
AE5-(90)		By language

Subclass AG

AG2-600

Dictionaries and other general reference works

Subclass AI

AI1-21

Indexes

Subclass AM

AM1-(501)	Museums. Collectors and collecting
AM10-100		By country
AM111-160		Museology. Museum methods, technique, etc.
AM200-(501)		Collectors and collecting

Subclass AN

AN	Newspapers

Subclass AP

AP1-(271)	Periodicals
AP101-115		Humorous periodicals
AP200-230		Juvenile periodicals
AP(250)-(265)		Periodicals for women
AP(270)-(271)		Periodicals for Blacks

Subclass AS

AS1-945	Academies and learned societies
AS2.5-4		International associations, congresses, conferences, etc.
AS11-785		By region or country

Subclass AY

AY10-2001	Yearbooks. Almanacs. Directories
AY10-29		Annuals
AY30-1730		Almanacs
AY2001		Directories. General works on the compilation of directories, etc. Class directories by subject in B-Z

Subclass AZ

AZ(20)-999	History of scholarship and learning. The humanities
AZ101-(181)		Philosophy. Theory
AZ191-193		Evaluation
AZ200-361		History
AZ501-908		By region or country