By studying the classic designs of Garamond, Casion, Bodoni, Walbaum and others, the designer can learn what the timeless criteria are which produce a refined and artistic typeface that makes for ease of reading.

The lead type designs of Berthold, Helvetica, Folio, Univers etc. produce pleasant and easily legible type areas. The typographic rules that apply to the roman typefaces are also valid for the sans serifs.