Key points at a glance
- Grey literature appears outside conventional publishing channels.
- Relevance depends on question and content, not publication type alone.
- Record discovery, provenance and appraisal reasons.
What can grey literature contribute?
Depending on discipline, grey literature may include government reports, working papers, project reports and publications from professional organisations outside conventional book and journal publishing. It can provide recent processes, local data or findings difficult to locate in journals.
Cornell University Library explicitly considers grey literature in evidence search planning. That does not make every report equally dependable. Assess whether a particular document addresses your question and explains how it was produced.
Search deliberately rather than incidentally
Identify organisations likely to publish data or analyses on your subject. Search official repositories, professional bodies and suitable report collections. Record terms, platform, date and filters. A general web result can be a lead, but inspect the original document before using it.
Original example: For a project on local learning spaces, you might inspect municipal reports and evaluations by relevant institutions. A promotional leaflet can document how a service describes itself, but it cannot establish an independently assessed effect.
Appraise the document itself
Identify the responsible organisation, purpose, date, dataset, procedure and relevant interests. Are definitions and sample counts available? Are limitations stated? Treat a statistic without a clear collection procedure cautiously, however polished the website looks.
Distinguish source functions. A government report may supply administrative figures and express policy objectives. Assess the figures and advocacy separately. A project report can describe implementation without establishing lasting effectiveness.
Check for a newer version. An earlier edition may matter for historical comparison, but identify it as such. Archived copies or persistent identifiers help readers locate material after a page changes.
Report its use and limits
Explain why the grey source suits the specific claim. Cite the responsible body, title, year, version and stable location according to your required style. Do not invent absent bibliographic data. An access date may help for changing web material.
Do not assume a report can substitute for a scientific study of effects. Equally, a careful search should not automatically discard suitable institutional data because of publication venue. State your eligibility rules and apply them consistently.
Final submission context
Formal details can feel like a separate writing task, but they matter just as much for a printed submission. Anything missing, misplaced or inconsistently formatted in the document will also appear in the bound copy.
Use this guide together with your cover page, table of contents, page numbers, source notes and appendices. Prepare the final PDF for printing and binding only after the complete file has been checked.
Practical check before PDF export
- Do headings, chapter structure and page numbers match?
- Are sources, figures and tables included completely?
- Are required elements such as declarations, appendices or the cover page included where required?
- Did you open and check the final PDF after exporting it?
Checklist
- Identify relevant organisations and repositories.
- Record the discovery route.
- Check authorship, methods and interests.
- Preserve document version and location.
- Limit claims to what the source supports.
Common mistakes
- Taking a polished website as proof of quality.
- Using project promotion as independent effect evidence.
- Excluding or favouring all grey literature by default.
Print and bind your finished thesis
Once you have checked the content and final PDF, configure the printed copies to match your submission requirements.
Configure printing and bindingRelated content
Explore related guidance on thesis structure, sources, formatting and final submission.
Frequently asked questions
Can grey literature be cited?
Often yes, when it is suitable for your question and identifiable. Quality, your referencing style and university requirements determine its use.
Is a preprint grey literature?
Classification depends on the definition and field. More important is to identify its review and version status correctly and check whether a later published version exists.
Can an official report replace a study?
It may be the appropriate source for certain administrative data. For claims about causes or effects, examine whether its design actually supports that inference.