Helvetica compromises...the spacing has ended up much looser than Miedinger's wonderfully tight original at display sizes but much too tight for comfortable reading at text sizes." iOS used first Helvetica then Helvetica Neue as its system font. All releases of macOS prior to OS X Yosemite used Lucida Grande as the system font. The version of Helvetica Neue used as the system font in OS X 10.10 is specially optimised; Apple's intention is to provide a consistent experience for people who use both iOS and OS X. Apple replaced Helvetica Neue with San Francisco in iOS 9 and OS X El
Thibaudeau classification serifs. It corresponds to the three classical categories (humanists, garaldes and transitionals) from the Vox-ATypI classification. Examples: Garamond, Palatino, Times Roman This family groups typefaces with linear or hairline serifs. It generally corresponds to modern or Didone categories. Examples: Didot, Bodoni, Walbaum Roman This family contains slab serif typefaces, called Mechanistic in the Vox-ATypI classification. Examples: Memphis, Rockwell This is the sans serif family. In Vox-ATypI classification, this family corresponds to the Lineals. Examples: Futura, Univers, Arial, Helvetica... Thibaudeau classification In typography, the Thibaudeau Classification is a way to group typefaces into four general families, according to shape and serif