ComCat Replaces the Virtual Catalog

Go to Commonwealth Catalog

The Commonwealth Catalog (ComCat) is now live. Massachusetts libraries are in the process of moving from the statewide Virtual Catalog to ComCat. ComCat has great new features, including book jacket images and improved search options. You can easily select your preferred format for an item where available - hardcover, paperback, large print, audiobooks, and DVDs will appear together in your search results.

If your library is in one of these networks, you should now use ComCat to request library materials that your can't get through your own system:

You also may explore ComCat as a guest.


If your library is a member of C/W Mars, the Merrimack Valley Library Consortium (MVLC), or NOBLE, please login below:

Login to the Virtual Catalog


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This Web site, and other programs of the Massachusetts Board of Library Commissioners, is funded in part with funds from the
Institute of Museum and Library Services, a federal agency that fosters innovation, leadership and a lifetime of learning.
Page last updated on 07/7/2015