In typography, the Vox-ATypI classification makes it possible to classify typefaces in eleven general classes. Devised by Maximilien Vox in 1954, it was adopted in 1962 by the Association Typographique Internationale (ATypI) and in 1967 as a British Standard, as British Standards Classification of Typefaces (BS 2961:1967), which is a very basic interpretation of the earlier Vox-ATypI classification.
Originally a ten-part classification, Vox revised his original proposal within months to a more compact nine-part scheme.
This classification tends to group typefaces according to their main characteristics, often typical of a particular century (15th, 16th, 17th, 18th, 19th, 20th century), based on a number of formal criteria: downstroke and upstroke, forms of serifs, stroke axis, x-height, etc. Although the Vox-ATypI classification defines archetypes of typefaces, many typefaces can exhibit the characteristics of more than one class.
At the 2010 ATypI general meeting, the association voted to make a minor amendment to add Gaelic to the calligraphic group in the Vox-ATypI classification, to state that the Vox-ATypI system was seriously flawed, and to create a new working group on typeface classification.
The classicals can be broken down into humanist, Garald and transitional categories, and are characterized by triangular serifs, oblique axis and low stroke contrast. In other classification systems, this group is often referred to as "oldstyle."
Humanist, humanistic, or humanes include the first Roman typefaces created during the 15th century by Venetian printers, such as Nicolas Jenson (hence another name for these, Venetian). These typefaces sought to imitate the formal hands found in the humanistic (renaissance) manuscripts of the time. These typefaces, rather round in opposition to the gothics of the Middle Ages, are characterized by short and thick bracketed serifs, a slanted cross stroke on the lowercase 'e', ascenders with slanted serifs, and a low contrast between horizontals and verticals. These typefaces are inspired in particular by the Carolingian minuscule, imposed by Charlemagne during his reign of the Holy Roman Empire.
Also called Aldine, this group is named in homage to Claude Garamond and Aldus Manutius. In general, the garaldes have finer proportions than the humanists, and a stronger contrast between downstroke and upstroke. The weight of the garaldes are distributed according to an oblique axis. In France, under King Francis I, the garaldes were the tool which supported the official fixing of grammar and orthography.
The transitional, realist or réales are the typical typefaces of the traditional period, particularly embodying the rational spirit of the Enlightenment. Contrast between main and connecting strokes is marked even more than in the first two groups, weight is distributed now according to a quasi-vertical axis. The realists are the result of the wish of Louis XIV to invent new typographical forms, on the one hand to find a successor of the Garamond, on the other hand to compete in quality with the different printers of Europe. The term realist is unrelated to the artistic movement realism, and derives from the Spanish for "royal", because of a typeface cast by Christophe Plantin for King Philip II of Spain.
The moderns can be broken down into Didone, mechanistic and linear categories, and are characterized by a simple, functional feel that gained momentum during the industrial period.
The Didones or modern typefaces draw their name from the typefounders Didot and Bodoni. These typefaces, dating from the end of the 18th and the beginning of the 19th century, make a very strong contrast between full and connecting strokes (the connecting strokes being extremely fine), the verticality of the characters and their unbracketed, hairline serifs. They correspond to the Didot of the Thibaudeau classification. The didones in particular made it possible for the First French Empire to employ typefaces very different from the typefaces used by the kings from the Ancien Régime.
Also called mechanical, slab serif, or mécanes, the name of this group evokes the mechanical aspect of these typefaces, which coincide with the Industrial Revolution at the beginning of the 19th century. The principal characteristics of these typefaces are a very low contrast and rectangular slab serifs. They correspond to the Egyptiennes of Thibaudeau classification. This category includes both typefaces with bracketed serifs (clarendons or ionics) and typefaces with square or unbracketed serifs (egyptians).
Lineals, or linéales, combine all typefaces without serifs (called sans-serif, gothic, or grotesque). These correspond to the Antiques of the Thibaudeau classification. The British Standard 2961 broke this group into 4 subcategories: Grotesque, Neo-Grotesque, Geometric, and humanist.
Grotesque typefaces are sans serif typefaces that originate in the nineteenth century. There is some degree of contrast between thick and thin strokes. The terminals of curves are usually horizontal, and the typeface frequently has a spurred "G" and an "R" with a curled leg.
Examples of grotesque lineal typeface include Headline, Monotype 215, and Grot no. 6.
Neo-grotesque typefaces are derived from the earlier grotesque faces, but generally have less stroke contrast and a more regular design. Unlike the grotesque, they generally do not have a spurred "G", and the terminals of curves are usually slanted. Many neo-grotesque faces have a large degree of subtlety and variation of widths and weights to accommodate different means of production (Hot type, foundry type, phototypesetting, see History of typography, 20th century).  "Realist sans-serif" is a commonly encountered synonym for neo-grotesque.
Geometric typefaces are sans serif faces constructed from simple geometric shapes, circles and/or rectangles. The same curves and lines are often repeated throughout the letters, resulting in minimal differentiation between letters.
Humanist typefaces, instead of deriving from the 19th century grotesque faces, relate to the earlier, classical hand written monumental Roman capitals and a lowercase similar in form to the Carolingian script. Note that the term "humanist" is being used here in combination with lineal to create a subcategory, and these typefaces only slightly resemble those in the humanist serif category.
The Calligraphics can be broken down into glyphic, script, graphic, blackletter, and Gaelic categories, and are characterized by a suggestion of being hand-crafted.
The glyphic, incised, or incise are typefaces which evoke the engraving or chiseling of characters in stone or metal, as opposed to calligraphic handwriting. They thus have small, triangular serifs or tapering downstrokes. There is usually a greater emphasis on the capital letters in glyphic typefaces, with some faces not containing a lowercase.
The scripts or scriptes include typefaces which evoke the formal penmanship or cursive writing. They seem to be written with a quill, and have a strong slope. The letters can often be connected to each other. Typefaces imitating copperplate script form part of this family. Scripts are distinct from italic type.
The graphic, manual, or manuaires, are based on hand-drawn originals which are slowly written with either a brush, pen, pencil, or other writing instrument. These typefaces generally do not represent writing, and are not intended for body text, but instead display or headline purposes. Vox originally included the blackletter and uncial faces in this categorization.
The original Vox classification contained the above 9 groups. ATypeI added two more classifications, the blackletters and the Non-Latins. The blackletters or fractures, which Vox included in the graphics, are characterized by pointed and angular forms, and are modeled on late medieval hands written with a broad-nibbed pen.
This heterogeneous family, not included in the original 9 Vox groups, gathers (without distinction of style) all writing systems not based on the Latin alphabet: Greek, Cyrillic, Hebrew, Arabic, Chinese, etc. English printers traditionally called these exotics.
Catherine Dixon, in a 2002 paper, criticized both the Vox and British Standard categories for favoring roman typefaces over display typefaces, which derives from early twentieth century design culture. As an example, Dixon notes that in these classification systems "'humanist' types are formally distinguished from 'garalde', even though the formal differences are very subtle and such a distinction is only appropriate for very few types. But large numbers of slab serif types, clarendons or ionics (that is bracketed slab serifs) and egyptians (that is square-ended, unbracketed slab serifs) are simply grouped together." Dixon challenges the prevalent focus on roman types as being dated, saying "distinctions between text and display are now increasingly irrelevant, with the greater subtlety that has been introduced into sans serifs and slab serif designs, leading to a wider application of such types for text purposes." Dixon's conclusion is that these systems have remained unchanged since 1967, and thus many contemporary typefaces render these systems inadequate.
Name ambiguities 
The Vox classifications can be used in combination. Notably, "transitional" (and its synonym "realist") and "humanist" are used to distinguish between groups of sans-serif (also called "lineal", "Gothic", or "grotesque") typefaces, sometimes with the term "sans-serif" omitted. The sans-serif realists have more constant line weight, while the sans-serif humanists have a varying line weight which harks back to Carolingian minuscule. So, very different typefaces may be described by the same term: for example, Times Roman and DIN 1451 may both be described as realist or transitional.
- The common typographic term "old style" does not differentiate between humanist and Garald typefaces.
- Campbell 2000, p.173
- Trésor de la langue française entry for "réale"
- Dixon 2002
- BS 2961
- McLean 2000, p. 60
- McLean 2000, p. 62, 69
- McLean 2000, p. 62
- McLean 2000, p.62-63
- Haralambous 2007, p. 411
- McLean 2000, p. 64
- British Standards 2961, British Standards Institution, 1967
- Dixon, Catherine (2002), "Twentieth Century Graphic Communication: Technology, Society and Culture", Typeface classification, Friends of St Bride
- Campbell, Alastair (2000), The Designer's Lexicon: The Illustrated Dictionary of Design, Printing, and Computer Terms, San Francisco: Chronicle Books, p. 173, ISBN 0-8118-2625-2
- Haralambous, Yannis; Scott Horne, Translated by P. (2007), Fonts & Encodings, Sebastopol, Calif.: O'Reilly Media, pp. 409–411, ISBN 978-0-596-10242-5
- McLean, Ruari (2000), The Thames & Hudson Manual of Typography, London: Thames & Hudson, pp. 58–64, ISBN 0-500-68022-1
- Trésor de la langue française, Centre de recherche pour un Trésor de la langue française, 1994