Willi Freeden completed his studies in mathematics, geography, and philosophy at the RWTH Aachen University. In 1971, he obtained his Diploma in Mathematics, in 1972, his Staatsexamen in mathematics and geography, in 1975, his PhD in mathematics, and in 1979, his Habilitation. In 1981/1982, he was a visiting research professor at the Ohio State University, Columbus (Department of Geodetic Science and Surveying). He became a professor of mathematics at the RWTH Aachen University (Institute of Pure and Applied Mathematics) in 1984 and later in 1989, joined the University of Kaiserslautern as a professor of technomathematics (Industrial Mathematics). He was appointed and has been the Head of the Geomathematics Group since 1994 and he was the Vice President for Research and Technology at the University of Kaiserslautern, a position he held from 2002 to 2006.