Computer fonts are collections of letters, numbers, and other characters that are all designed in the same style. Some common fonts include Times New Roman, Arial, Calibri, Helvetica, and Garamond. Fonts are normally provided in TFF or OTF file format to be installed on a computer. You'll often hear “font” and “typeface” used interchangeably, but technically a typeface is made up of multiple fonts - each in a specific weight, style, and size.