Your word processor allows you to set line spacing (space between lines) at single, double, or 1.5 or to customize it to any increment of lines (measured in points). You can also set space between paragraphs.
Your document’s purpose and context should determine appropriate margins and line spacing. If you are unsure about margin and spacing requirements for your document, consult documents similar to the one you are writing or check with your instructor.
Drafts in progress and academic papers are often double-spaced to allow room for editing.
Sample double-spaced text
Most business and technical reports are single-spaced, with a space break between paragraphs, to save paper and promote quick scanning.
Newsletters and trifold brochures tend to use narrow margins and single-spaced lines to conserve space. Sometimes a brochure or an ad uses extra spacing between lines to give an open, designed look.
Sample single-spaced text