Wikipedia (en)

Myriad is a humanist sans-serif typeface designed by Robert Slimbach (born 1956) and Carol Twombly (born 1959) in the period 1990–92 for Adobe Systems. Myriad is a multiple masters face that works with an intelligent software “engine” to allow the user to generate variations in width and weight by accessing a broad range of stroke widths arranged on individual character rasters.Humanist sans serif typefaces have an organic structure, and an underlying armature similar to old style serifs. Uppercase characters tend to have a horizontal axis similar to the monumental capitals found in inscriptions in the Roman forum. The lowercase often follow the model of Carolingian script. Humanist sans-serif types have subtle organic shapes and monotone color, balanced by varying letter widths and open counter shapes. The voice of humanist sans-serif types is warm and friendly without the cool directness of realist sans-serifs faces like Akzidenz Grotesk or Univers. A readable and friendly face, Myriad works well for both text and display typography.Since the launch of the eMac in 2002, Myriad has been replacing Apple Garamond as Apple Computer‘s corporate font. It is now used in all of their marketing and on their products (See Apple typography). More recent iterations of the iPod (from the iPod photo onwards) have used Podium Sans, which has similarities with Myriad (as opposed to Chicago), for their user interface. Another humanist sans-serif typeface, Lucida Grande is used as the system font for Apple’s Mac OS X operating system. Myriad is also used in the corporate identity of Wells Fargo and Modern Telegraph as their primary headline typeface.Availability:

• Adobe Reader 8.0 – in Resource/Font

source : http://en.wikipedia.org/wiki/Myriad_%28typeface%29