We adopt a hierarchical sectioning scheme: (chapter,) section, subsection, subsubsection, paragraph, subparagraph (the deepest level).
Each chapter (or each section, when using article.sty) should start on a new page. Header and footer information does not appear on the first page of a chapter.
No heading of any type should be italicised or underlined.
Headings should be
capitalised only initially, unless they contain words
which are normally capitalised:
2.1 The syntactic level
4.2 Evaluation in Information Retrieval
2.1 The Syntactic Level
4.2 Survey of Relevant Literature