This monograph contains the ceremonials and proceedings of the Workshop/Minisymposium on "Electromagnetics in a Complex World: Challenges and Perspectives", convened at the University of Sannio, Benevento, Italy from February 20-21, 2003, in connection with the bestowal of an honorary Laurea degree on Professor Leopold B. Felsen. The various contributions from scientists and engineers in academy and industry address diverse problems in electromagnetics, either on a broad scale or in particular specialties. The wide-ranging topics and techniques, analytic models (with phenomenologies) and numerical simulations - motivated by actual or potential applications to real-world problems - are intended to stimulate interdisciplinary exchange.