Dewey Decimal Classification (MCLS)

Scheduled Offerings

There are currently no classes scheduled for this course.

Course Overview

This is an introduction to the 23rd edition of the Dewey Decimal Classification system. The instructor will teach participants how to interpret and construct Dewey Decimal call numbers. Participants will learn how to derive the base number from the index and schedule and then how to complete the number using tables and other devices. Participants will examine a number of examples in detail and will also construct numbers from scratch. The examples will cover all major subject areas in the classification scheme. Participants will learn how to construct "complete" Dewey numbers, such are used in large research libraries, but will also learn how to build "truncated" Dewey numbers, such as those that are used in school, public and small academic libraries.

This class will be online for 3 - 2 hr sessions over 3 consecutive days using our online workshop software. You will receive additional instructions on how to attend this session after registering for this class.

Pricing listed above is per person. If you are interested in having multiple staff members attend an online workshop at a single location (e.g. a conference room), we are now offering a group rate of $249 for MCLS members and $349 for non-MCLS members. This rate will give you a single login that you will be able to use to login to one computer station. If you would like to register a group for an online workshop, please contact Heather Thomas at

Restrictions apply. Group pricing is not available for MCLS special programs. You can only purchase a group rate for employees of your institution (those who are not employees of your institution are not eligible to attend).


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Course Provider


Course Length

6.0 Hours (3 days / 2-hour sessions per day)

Course Format

Live Online


Subject Area

Cataloging and Metadata


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