Definition: Typography refers to the art and use of writing type for artistic or simply practical purposes. Printing process invented by Gutenberg around 1440, typography is the use of characters in printing: choice of fonts (examples: times, arial, helvetica, etc.), of the body (i.e. the size text) and layout. It is therefore a question of arranging, in a coherent and elegant way, a set of printed characters, in order to compose a writing. The abbreviation “typo” more generally designates a production of text (example: a “typo” poster only visualizes a graphic composed of words).