The aim of compiling the various essays presented here is to make readily accessible many of the most significant and influential discussions of privacy to be found in the literature. In addition to being representative of the diversity of attitudes toward privacy, this collection has a coherence that results from the authors' focus on the same issues and theories. Although the main issue addressed here is the moral significance of privacy, some social science and legal treatments are included because of their direct bearing on the moral issues that privacy raises. In addition to the classics on privacy, I have included an interpretive essay on the privacy literature; this provides a philosophical guideline as to what the issues are and how various thinkers have contributed to their resolution.