Proportional and Monospace Typefaces
A Proportional typeface has letters/glyphs of varying widths and are generally thought to be easier to read than Monospaced typefaces where a standard width is allowed for all letters/glyphs. Most printed matter and computers use proportional fonts. Monospaced fonts are preferred where regular columns of numbers or letters are needed. Text-only computer programs and manual typewriters use monospaced fonts. They are also used by developers/computer programmers because the regular width makes source code is easier to see and compare.