This COMPEL e-book is devoted to papers presented at the International Symposium on Electromagnetic Fields in Electrical Engineering ISEF'09, organized jointly by the LSEE (Laboratory of Electrical Systems and Environment), University of Artois, France, and Institute of Mechatronics and Information Systems, Technical University of Lodz, Poland. This e-book contains 24 papers selected by the Guest Editors as a result of a two-stage qualification process: first, recommendations of the chairmen of the sessions, and secondly, reviews by two independent referees. Computational and modelling aspects feature prominently, although design, measurement and performance issues are addressed as well.