Linespacing or Leading /ˈlɛdɪŋ/ refers to the distance between the baselines of successive lines of type. Alignment or range, is the setting of text flow or image placement relative to a page, column (measure), table cell or tab. Justification refers to the degree to which the spaces between words, and, to a lesser extent, between…

Linelength or measure refers to the length of a line of text (caps, lowercase and numerals. Tracking or letter-spacing refers to a consistent and uniform degree of increase (or sometimes decrease) of space between letters to affect overall density and texture in a line or block of text. Kerning (less commonly mortising) is the process of…

Readability is concerned with comprehension: the ease in which text can be read and understood. It refers to entire words, sentences, and paragraphs. Legibility is concerned with perception: the degree to which individual characters or letters (glyphs) in text are understandable or recognizable as distinct from each other based on appearance. Readability Various factors to…

Sources: Wikipedia: History of Western typography, Movable type,  Type Design History See also Typeface Classifications Typesetting systems and technology Earliest developments Typography traces its origins to the first punches and dies used to make seals and currency in ancient times. The uneven spacing of the impressions on brick stamps found in the Mesopotamian cities of Uruk and Larsa,…