Jürgen Willrodt studied Physics and Mathematics and got a PhD in theoretical particle physics in 1976. He joined URW Software & Type GmbH in 1983 as software developer. His ﬁrst major development project was the porting of the IKARUS font production system from DEC to Sun Unix. He has been the main developer of the IKARUS system since 1985, developing interpolation, auto-tracing, and hinting algorithms, as well as special algorithms for Kanji separation. At URW++ Jürgen is responsible for the font production and the font-tools development, which includes FoundryMaster and DTL OTMaster.