He was born in Arnhem, Netherlands. He worked at Total Design, Prad and Joh. Enschedé. In 1975, he became an independent developer. He was a long-time guest lecturer at the University of Reading, he mentored many modern typeface designers.[2]
Unger died on 23 November 2018 in Bussum, Netherlands from stomach cancer at the age of 76.[3]
