> ## Content Index
> Fetch the complete content index at: https://www.lorcandempsey.net/llms.txt
> Use this file to discover other available public pages before exploring further.

# DDC summaries
- URL: https://www.lorcandempsey.net/ddc-summaries/
- Published: 2005-04-29T17:21:15.000Z
- Updated: 2005-04-29T17:21:15.000Z
- Author: Lorcan Dempsey
- Tags: Systems

We made the Dewey Decimal Classification system summaries available for open use a while ago on the [ResearchWorks](https://www.oclc.org/research/researchworks/default.htm?ref=lorcandempsey.net) website (the top three levels). I am not sure how widely noticed this was.

> The Dewey Decimal Classification (DDC) system uses simple decimal notation to divide recorded knowledge into 10 main classes, 100 divisions and 1,000 sections. \[[OCLC ResearchWorks – About DDC and the Summaries](https://www.oclc.org/research/researchworks/ddc/terms.htm?ref=lorcandempsey.net)\]

What has been noticed in a couple of places are the [DDC RSS feeds](https://www.oclc.org/dewey/syndicated/rss.htm?ref=lorcandempsey.net).