BIBFRAME? EAD? MARC 21 forms? MARCXML? PREMIS? Z39.50? ISO 639-2? need to know more?

The Standards page from the Library of Congress is a good resource that has links to the standards for Resource Description Formats, Digital Library Standards, Information Resource Retrieval Protocols and Information Resource Retrieval Standards.


“PCC is a cooperative cataloging venture wherein members contribute bibliographic records and related data under a common set of standards and conventions using the bibliographic utilities.”

The Program for Cooperative Cataloging (PCC) has its own page on the Library of Congress website. This is where you will find information about the PCC programs BIBCO, CONSER, NACO & SACO, their decisions, policies, guidelines and how to join.

According to a serials librarian I know you if you catalog serials you need to know the MARC 21 Format for Holdings Data. The online publication provides access to descriptions of “every data element, along with examples”.


The Library of Congress Cataloging and Acquisitions Home page is a useful starting page for finding some of the information needed to catalog. The home page has links to:

  • Subject & Genre Form Headings list
  • ALA-LC Romanization Tables
  • MARC standards and Documentation

Products available for download include:

  • Genre/Form terms (LCGFT) and manual,
  • Descriptive Cataloging Manual

A very general site that maps Library of Congress Classification to the Dewey Decimal Classification is LC to DDC is Map LC (LCC) to Dewey (DDC) Classification.

The site has not been updated since 2003, however, it can be useful to point to the area of Dewey needed. It also has link to the reverse: DDC to LC.

I have found the three volume Conversion Tables by Mona L. Scott to be more helpful. It also is a little dated (2006), however, it generally gets me the right area of Dewey.

If you know of a another or better resource please share by commenting.

Earlier this year OCLC changed the location for retrieving and downloading software, including Connexion Client.  The new site is Software & Reports.  The Product Services Web page (PSWeb) is now discontinued.

Northern Illinois librarians, for this and other updated information on online cataloging resources, consider attending next month’s LACONI Technical Services Section program (see Joy’s post below).



ALA’s ALCTS (Association for Library Collections & Technical Services) has been presenting and publishing RDA webinars since 2010.  You can register for live upcoming presentations (this also gives you unlimited access to the recorded webinar); buy recordings up to two weeks after the live event; or wait six months until the recorded presentation is made available without charge.  These webinars can be invaluable for initial training, for learning how to apply RDA in a new context, or for a refresher.

Upcoming webinars are listed here:

Cataloging and RDA webinars, specifically, here:

And free RDA webinars can be accessed here:

If you’re curious about ALCT’s other webinars, check out their general playlist on YouTube:

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