a website for all New Zealand cataloguers

Web Dewey

Web Dewey (23) Training Resources:


Dewey 23: An Overview of the Changes  (A National Library powerpoint presentation)

The following Web Dewey training tutorials were produced by National Library staff for in-house training. As cataloguers may be moving to using Web Dewey with the release of DDC 23, we are making these training resources available. Each tutorial takes about an hour and is designed for cataloguers to work through at their own pace. Once staff have completed a tutorial we recommend at least a two week period using the Web Dewey interface to consolidate learning before moving to the next tutorial.


1.) Introduction to Web Dewey

2.) Web Dewey Beginners Tutorial 

3.) Web Dewey Advanced Tutorial 

4.) Web Dewey Literature Numbers

More detailed WebDewey (23) Programme Documents

Please see the following presentations from Catherine Amey, cataloguer at the National Library of New Zealand, for an overview of the changes in Dewey 23.


WebDewey Training Programme Documents National Library of New Zealand (August 2012)

National Library of New Zealand staff have created the following collection of tutorials for in-house training, and we are making these available to other libraries. The training programme requires no prior knowledge of the Dewey Decimal Classification system. Tutorials can be used by a trainer to introduce the principles of Web Dewey to new cataloguers, or cataloguers can work through these at their own pace, or select which tutorial seems most relevant. Each module takes approximately an hour.

All tutorials are based on the WebDewey interface of version 23 of the Dewey Decimal Classification system.

Session 1: Introduction to DDC

Principles of classification, the main parts of DDC 23, how to classify, the relative index, principles of hierarchy, the concept of  disciplines, interdisciplinary numbers, and comprehensive works

Session 2 : Introduction to number building and standard subdivisions
Table 1 standard subdivisions, basic principles of number building, and rules about zeroes, and tables of preference

Session 3: Table 2 subdivisions, and history and geography

An introduction to geographic subdivisions, and to the 900 class

Session 4:  Advanced number building

The concepts of ‘approximating the whole’, ‘class here’ & ‘including’ notes

Session 5: Classifying literary works by a single author
An introduction to the 800s, Table 3, and Table 3A

Session 6a : Classifying literary works by more than one author

An introduction to Table 3B and Table 3C

Session 6b : Additional notes relating to literature and rhetoric

Extra notes and examples, including rhetoric and creative writing, collections of works from multiple literatures, and Māori and Pacific literatures

Session 6c : Extra practice exercises from Table 3B

Practice exercises and model answers

Session 7 : Language, linguistics, nationalities, and ethnic groups
An introduction to the 400s, and tables 4, 5 and 6

Session 8: Classifying law and legal materials

An introduction to the 340s

Also, please note that from December 1, 2011, the  National Library of New Zealand will start using Dewey 23 in their bibliographic records.

And, as always, follow the Dewey Blog here in order to stay up to date on the latest news.