What is sumner stone?

Sumner Stone is an American typeface designer, born in 1945 in Jackson, Michigan. He has designed a number of typefaces for various companies, including Adobe, Linotype, and ITC. Some of his notable typefaces include the ITC Stone family and the Adobe Proxima Sans and Myriad families. Stone has also worked as a type director for Adobe and spent several years as a professor at Art Center College of Design. He received the prestigious Gerrit Noordzij Prize in 2017 for his contributions to typeface design.