In typography, the Vox-Atypi classification makes it possible to classify typefaces in eleven general classes. Invented by Maximilien Vox in 1952, it was adopted in 1962 by the Association International Typographique (ATypI). This classification tends to group typefaces according to main characteristics, often typical of one century (15th, 16th, 17th, 18th, 19th, 20th century), and this while being based on a certain number of criteria: downstroke and upstroke, forms of serifs, stroke axis, x-height, etc.