This chapter uses the story of Peter Senge’s The Learning Organization (TLO) and talks about ‘learning organizations’ to illustrate how management fads and fashions affect the spread of knowledge. Some commentators labeled Senge’s successful TLO work a ‘fad.’ Implicit in such labeling is derision and suggestion that association with TLO lacks benefit. New management techniques often provoke skepticism and when miracles do not occur, receive the same derogatory ‘fad’ label. Is the negativism associated with management fads and fashions warranted? Analysis of the Senge TLO phenomena portrays fads and fashions as social processes, intrinsic to social change. They erupt from latency periods and may have brief or long lives. In retrospect, their consequences may be beneficial or harmful and may be short term or long term. Even brief fads may produce lasting benefits. TLO’s story shows the complexity of social change and reveals the fluidity of knowledge, as ever-evolving fads and fashions weave older ideas into new beliefs and ways of problem solving.