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A footnote is for a reference that documents or elucidates the primary text.3
Footnotes are distracting; use them sparingly at most, and it is best to avoid them completely. Standard bibliographical references are usually better placed in a bibliography at the end of a document instead of in footnotes throughout.
| • Footnote Commands | How to write a footnote in Texinfo. | |
| • Footnote Styles | Controlling how footnotes appear in Info. |
A footnote should complement or expand upon the primary text, but a reader should not need to read a footnote to understand the primary text. For a thorough discussion of footnotes, see The Chicago Manual of Style, which is published by the University of Chicago Press.