Footnotes are often used in textbooks and manuals. They are notes located at the bottom of a page that provide additional information about something mentioned in the text above. InDesign makes it easy to insert and format footnotes.
To insert a footnote, place your cursor into the text where you want the footnote reference number to appear, and then choose Type > Insert Footnote. The number appears in the text and its corresponding footnote text appears at the bottom of the column (Figure 13.6). The cursor is also repositioned within the footnote area so you can immediately start adding text to it. As you type, the footnote area expands upward, as necessary, to accommodate all the text.