Kurt Mehlhorn, director of the Max Planck Institute for Informatics. Prior to that he had earned a master's degree (thesis: "Sorting Presorted Files", 1980) and an undergraduate degree in informatics (1977) by the same university. In fact, the latter was his second undergraduate degree, as he had previously graduated from the Mathematics Department of the Aristotle University of Thessaloniki, Greece (1973). Since 1983, he participated in research for the DFG (Deutsche Forschungsgemeinschaft, the German community of research) and professional teaching at the University of Saarland related to Data Structures, Graph Algorithms, Computational Geometry and programming, until 1989, when he returned to Greece to become an associate professor (and later in 1992 a full professor) at the Computer Engineering and Informatics Department (CEID), University of Patras, where he remains professionally active until today. He was also a visiting professor at King's College London (2003–2006). Besides significant scientific work, Athanasios Tsakalidis has nominated 26 Ph.D. Fellows, 13 of whom have pursued a successful academic career themselves. Furthermore, he has awarded 63 Master's degrees in computer science and appointed 630 undergraduate majors. Short Biography Athanasios Tsakalidis was born in 1950 in Katerini, Pieria, northern Greece, and studied mathematics at the Aristotle University of Thessaloniki. In 1973 he embarked on a journey around Europe which led him to Saarbrücken, Germany, where he was introduced by prof. Günter Hotz to the novel (at the time) field of computer science that was then being coined informatics. After 28 months of national service, he was enrolled in 1976 to the Computer Science department of Saarland University becoming the oldest undergraduate student (26 years old freshman) to be advised by the youngest professor at the time (27 years old) prof. Kurt Mehlhorn. Completing a 13 years long academic career in Germany, he returned to Patras, Greece in 1989, when he practically introduced theoretical computer science to the Greek academia and public. Until today he remains an influential academic figure, fundamentally promoting computer science in Greece, either by serving CEID (also as a Chairman in different periods) and also by supporting the establishment and development of computer science departments in many universities across the country. Arts Beyond computer science, Athanasios Tsakalidis has also created hundreds of paintings. A sample is found on his homepage. References External links Homepage of Athanasios Tsakalidis List of Publications Mathematical Genealogy Tree entry 1950 births Greek computer scientists Academics of King's College London Living