This monograph on scattering of electromagnetic waves by impedance wedges and cones is the most comprehensive treatise in existence on a specialized topic that is of great interest to electrical engineers and mathematical physicists. Written by two international experts on scattering and diffraction@ it constitutes a fundamental and lasting contribution to the field of applied mathematics. Even though its obvious applications are to radar and to mobile communications@ the mathematical methods employed herein are also applicable to problems involving scattering of acoustic and elastic waves. Thus@ this monograph is of interest to all researchers on wave propagation and will remain a standard reference for the foreseeable future. Author(s) Mikhail A. Lyalinov@ Ning Yan Zhu