In typography, a typeface is a coordinated set of glyphs designed with stylistic unity. A typeface usually comprises an alphabet of letters, numerals, and punctuation marks; it may also include ideograms and symbols, or consist entirely of them, for example, mathematical or map-making symbols. The term typeface is often conflated with font, a term which, historically, had a number of distinct meanings before the advent of desktop publishing; these terms are now effectively synonymous when discussing digital typography. A helpful and still valid distinction between font and typeface is a font's status as a discrete commodity with legal restrictions, while typeface designates a visual appearance or style not immediately reducible to any one foundry's production or proprietary control.

The art and craft of designing typefaces is called type design. Designers of typefaces are called type designers, and often typographers. In digital typography, type designers are also known as font developers or font designers.

The size of typefaces and fonts is traditionally measured in points; point has been defined differently at different times, but now the most popular is the Desktop Publishing Point. Font size is also commonly measured in millimeters (mm) and inches.