In any writing system, typefaces exist in an infinite number and variety of styles. They are influenced by many factors, such as technology, tools, necessity, and trends. But some of them are (or can be) grouped into categories for their similarities, into classification systems (sans serif, serif, humanist or geometric, etc.).

In the Latin script, we also identify Roman (or upright) and Italic as two ‘companion’ styles of the same typeface style.