Examples of gray literature

Examples of gray literature include:

  • reports
  • conference papers, posters or proceedings
  • policy documents
  • preprints
  • data sets
  • standards
  • translations
  • clinical trial data
  • factsheets
  • dissertations
  • committee reports
  • and more

While gray literature is increasingly being indexed in databases (particularly science and health related ones) it can be difficult to find and often needs to be searched for online. Locating gray literature can sometimes be challenging and requires persistence.