Grey literature: Home

This guide discusses, and helps you find, relevant grey literature for research in humanities and the social sciences

The Twelfth International Conference on Grey Literature in Prague in 2010 arrived at the following definition:

"Grey literature stands for manifold document types produced on all levels of government, academics, business and industry in print and electronic formats that are protected by intellectual property rights, of sufficient quality to be collected and preserved by libraries and institutional repositories, but not controlled by commercial publishers; i.e. where publishing is not the primary activity of the producing body."

The term 'grey literature' is used to describe materials not published commercially or indexed by major databases. While GL may be of questionable quality it has been shown to have an impact in research, teaching and learning. Sometimes, GL is the only source of information for specific research questions. While some GL may be published eventually, and may be easier to find, sometimes it never is.

GL may not go through a peer-review process, and its authority must be scrutinized

Giustini, D. Finding the Hard to Finds: Searching for Grey Literature (2012 Update)

Additional content within this grey literature guide has been based upon content developed by Hope Lappen (lappen@upenn.edu) of Penn Libraries at the University of Pennsylvania. Penn Libraries' grey literature information page is available here.

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This work is licensed under a Creative Commons Attribution 4.0 International License.