Set Line and Paragraph Spacing
Document text can be formatted to show a number of line-spacing options. The most common spacing options are single spaced and double spaced.
Line spacing is measured in lines or points. When line spacing is measured in points, it is referred to as leading (rhymes with wedding). When you reduce the leading, you automatically bring the lines of text closer together, sometimes making it difficult to read. Increasing the leading will space the lines out, allowing for improved readability. For example, a 10-point font usually uses 12-point leading. This is the default and should be used in general.