Headings are essential features of any business or technical document. Without headings, documents become a jumble of paragraphs for readers to interpret. Even well-written paragraphs are not easy to read unless they are paired with good headings. See EMPHASIS and PARAGRAPHS.
Well-written headings allow readers to skim and scan a document. Most readers of business documents read to find key information or a missing fact. They do not read a document line by line because their prior knowledge of the subject makes careful reading unnecessary.
Headings include any headline information within a document. The most basic headings appear as labels or signposts before blocks of text. However, headings also include subject lines that introduce ...