The book consists of seven chapters. The equations of classical electromagnetism are derived in Chapter 1. In Chapter 2 these equations are applied to certain boundary-value problems, such as the biconical antenna problem. Chapter 3 deals with local standing energy fields associated with electromagnetic energy exchanges. Chapter 4 contains a brief review of quantum theory. In Chapter 5, it is shown that there is a zero-point intensity of radiation that permeates all space. Full directivity is imposed as a boundary condition on a general, multimodal field expansion, and the properties of the resulting modal fields are determined. In Chapter 6, these results are used to determine all radiated fields during photon exchanges. The material is reviewed and summarized in Chapter 7.