Book excerpt: This book provides ways of thinking about information and the new responsibilities engendered by its acquisition, processing, storing, dissemination and use. It offers a set of concepts, methods, arguments and illustrations designed to sharpen the reader's ethical focus. Organized into three sections, the first provides a conceptual background for the book as a whole. The second part focuses on fundamental concepts about ethics and includes descriptions of the process of ethical thinking and a range of theories and principles that can be used in ethical situations. In the final part, the concepts of information and the need for ethics and ethical thinking are applied to the various levels of the social system to which they