A short passage of text, placed at the bottom of a page, which enriches the body text that refers to it.

Footnotes typically carry the same content as endnotes, but are more limited in length.

Traditionally, the body text that refers to a footnote is marked by an asterisk (*), dagger (†), or double-dagger (‡), and this mark appears at the start of the footnote text.

When typesetting an e-book, endnotes are typically used instead of footnotes if the layout is reflowable. For a fixed format book, either or both may be used.

Also see: endnote.