# [Tex/LaTex] When is it appropriate to use \paragraph

best practicessectioningsections-paragraphs

LaTeX provides seven sectioning commands:

1. \part
2. \chapter
3. \section
4. \subsection
5. \subsubsection
6. \paragraph
7. \subparagraph.

For most of the documents I write or come across, \subsubsection seems to be the deepest sectioning level used. Then there's the "rule" (by Tufte perhaps? I am unable to find the source right now) that suggests that the document outline should not be deeper than three levels, which would leave me somewhere between \subsection and \subsubsection depending on the document class being used. At any rate, I have not yet come across a use case for \paragraph and, thinking about it, I realize I don't know when it would be appropriate to use it. So, that's my question: when, if ever, should \paragraph be used?