Zeigler, having published several books on modeling and simulation, is best known for his theoretical work concerning modeling and simulation performed according to general systems theory. Moreover, Zeigler has played a critical role within the modeling and simulation field through his editorial responsibilities and professional activities that focus on the importance of modeling and simulation in its interaction with other disciplines (e.g., artificial intelligence, biological systems, and defense systems architecture). Zeigler has received much recognition for his various scholarly publications, achievements, and professional service. His 1984 book, Multifaceted Modelling and Discrete Event Simulation, was published by Academic Press and received the outstanding Publication Award in 1988 from The Institute of Management Sciences (TIMS) College on Simulation. Zeigler is a Fellow of the Institute of Electrical and Electronics Engineers (IEEE) as well as The Society for Modeling and Simulation International (SCS) which he served as President (2002-2004). He is a member of the SCS Hall of Fame. In 2013 he received the Institute for Operations Research and Management Sciences (INFORMS) Simulation Society Distinguished Service Award. In 2015 he received the INFORMS Lifetime Professional Achievement Award, which is the highest honor given by the Institute for Operations Research and the Management Sciences’ Simulation Society.