This webinar will give students' understanding of aircraft electrification for fixed-wing and VTOL aircraft segments and preview the course scheduled for May 18 - 22 in Kansas City. The stakes, challenges, and applications are addressed in detail. Various degrees of electrification are presented from the perspectives of principles, architectures, technologies, operations and performance. Design and validation methodologies and means constitute an integral part of the course. Informed case studies also illustrate how design criteria specific to a given aircraft segment (VTOL, commuter, regional, short- and long-range) are implemented. Focus is made on integration aspects. Moreover, for segments considered, payload, range, energy efficiency, and emissions performance are compared with reference aircraft.