This foreword, an addition to this second edition, serves in part as a preface that was not included in the original. In addition to providing brief descriptions of the material to be covered in each of the chapters, it makes reference to important scholarly contributions made in related areas of concern that developed following the publication of The Panoptic Sort in 1993. Among these contributions, those made by Karl Marx, Jacques Ellul, Anthony Giddens, and Michel Foucault were featured quite extensively. Among my colleagues and contemporaries, particular attention was also paid to the contributions made by James Beniger, Klaus Krippendorff, David Lyon, Vincent Mosco, Helen Nissenbaum, Priscilla Regan, and Alan Westin. Although the book was focused primarily on the collection and use of personal and transaction generated information, critical changes in communication and information technology, including the internet and algorithmic data processing were noted as central factors in the further development of the panoptic sort.