This book, which contains 15 chapters by various authors, aims to conceptualize new ways that knowledge is being "legitimized" through various formal and informal workplace-based research practices. It examines the new legitimations critically, and analyzes possible directions for future developments in work-based research and "knowledge" formation. Following the first chapter, "Legitimizing Knowledge at Work" by the editors, John Garrick and Carl Rhodes, the book includes the following essays: (Part 1, Knowledge, Learning, and the Practice of Work) "Working Knowledge" (Ronald Barnett); "Research on Work, Research at Work: Postmodern Perspectives" (Richard Edwards and Robin Usher); "The Crisis of Scientific Research" (Christine Ewan and Dennis Calvert); (Part 2, Whose Knowledge? Collaboration and Research in and around Work) "Globalizing the Intelligent Organization" (Stewart Clegg); "Knowledge and Control in the Japanese Workplace" (Keiko Morita); "Organizational Knowledge, Professional Practice, and the Professional Doctorate at Work" (Alison Lee, Bill Green, and Marie Brennan); "Research and Engagement with Trade Unions: Bridging the Solitudes" (Carla Lipsig-Mumme); "The Negotiated Management of Meanings: Research for Policy" (John McIntyre and Rosie Wickert); "Research Partnerships at Work: New Identities for New Times" (Hermine Scheeres and Nicky Solomon); (Part 3, Changing Practices of Research at Work) "The Construction of 'Working Knowledge' and (Mis)interpretive Research" (John Garrick); "'Doing' Knowledge at Work: Dialogue, Monologue, and Power in Organizational Learning" (Carl Rhodes); "An Adventure in 'Postmodern' Action Research: Performativity, Professionalism, and Power" (Jill Sanguinetti); "Virtual Research in Performative Times" (Robin Usher and Richard Edwards); (Part 4, Conclusions) "Inside the Knowledge Works; Reviewing the Terrain" (Carl Rhodes and John Garrick). Each chapter contains reference lists. (KC)