Readers love and crave white space. You may wish to vary the line spacing intermittently to reduce monotony or to highlight a particular section. Headings and sub-headings . Like newspaper headlines, these devices not only break up the cluttered look of a gray page, but also assist the reader by indicating main sections or sub-sections of a document. As a rule, anything that increases white space also enhances a document's appearance and readability.
Indents add white space and give shape and definition to a paragraph.
Block quotations . A block quotation is a quoted section of text of three or more lines. By convention, these chunks of quoted material are usually single-spaced, indented on both sides, and set off from the surrounding text. In effect, this highlights the material and makes it easier to recognize. Bullet lists .