This early work, originally published in 1899, contains the leading ideas of one of the most authoritative and distinguished writers in sociology and social psychology at the turn of the last century. Gabriel Tarde here outlines his three principal works on general sociology and the internal bond that unites them. A fascinating read for any sociologist, amateur or professional alike. Contents Include: Editor s Preface; Author s Preface; Introduction; The Repetition of Phenomena; The Opposition of Phenomena; The Adaptation of Phenomena; Conclusion. Many of the earliest books, particularly those dating back to the 1900s and before, are now extremely scarce and increasingly expensive. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork.