Raab and de Lange, both affiliated with the School of Chemical and Physical Science at the University of Natal, South Africa, offer a detailed introduction to classical, quantum-mechanical, and symmetry aspects of multipole theory in electromagnetism. They consider both charge distribution in a vacuum and, by extension, in bulk matter, and provide an account of some of the successes and failures of the direct application of multipole theory to macroscopic media. Required background includes a knowledge of introductory electromagnetic theory and introductory non-relativistic quantum mechanics. The book is distributed in the US by Oxford University Press