Matthias Felleisen is a German-American computer science professor and author. He grew up in Germany and immigrated to the US when he was 21 years old.He received his PhD from Indiana University under the direction of Daniel P. Friedman. After serving as professor for 14 years in the Computer Science Department of Rice University, Felleisen joined the Khoury College of Computer Sciences at Northeastern University in Boston, Massachusetts as Trustee Professor.