Yrjö Engeström earned his Ph.D. from the University of Helsinki in 1987. He is a Professor of Adult Education and Director of the Center for Research on Activity, Development and Learning (CRADLE) at the University of Helsinki. He is Professor Emeritus of Communication at the University of California, San Diego, where he also served as Director of the Laboratory of Comparative Human Cognition from 1990 to 1995. Engeström applies and develops cultural-historical activity theory as a framework for the study of transformations and learning processes in work activities and organizations. He is widely known for his theory of expansive learning and for the methodology of developmental work research.

'… rich in data and conceptual analysis … admirable scholarship …' Mike Bonner, PsycCRITIQUES

• 1. Teams and the transformation of work; 2. Disturbance management and masking in a television production team; 3. Teamwork between adversaries: coordination, cooperation, and communication in a court trial; 4. Displacement and innovation in primary care medical teams; 5. Crossing boundaries in teacher teams; 6. Knowledge creation in industrial work teams; 7. Teams, infrastructures, and social capital; 8. From iron cages to webs on the wind; 9. Knotworking and agency in fluid organizational fields.

Yrjö Engeström earned his Ph.D. from the University of Helsinki in 1987. He is a Professor of Adult Education and Director of the Center for Research on Activity, Development and Learning (CRADLE) at the University of Helsinki. He is Professor Emeritus of Communication at the University of California, San Diego, where he also served as Director of the Laboratory of Comparative Human Cognition from 1990 to 1995. Engeström applies and develops cultural-historical activity theory as a framework for the study of transformations and learning processes in work activities and organizations. He is widely known for his theory of expansive learning and for the methodology of developmental work research.

'… rich in data and conceptual analysis … admirable scholarship …' Mike Bonner, PsycCRITIQUES

• 1. Teams and the transformation of work; 2. Disturbance management and masking in a television production team; 3. Teamwork between adversaries: coordination, cooperation, and communication in a court trial; 4. Displacement and innovation in primary care medical teams; 5. Crossing boundaries in teacher teams; 6. Knowledge creation in industrial work teams; 7. Teams, infrastructures, and social capital; 8. From iron cages to webs on the wind; 9. Knotworking and agency in fluid organizational fields.

Yrjö Engeström earned his Ph.D. from the University of Helsinki in 1987. He is a Professor of Adult Education and Director of the Center for Research on Activity, Development and Learning (CRADLE) at the University of Helsinki. He is Professor Emeritus of Communication at the University of California, San Diego, where he also served as Director of the Laboratory of Comparative Human Cognition from 1990 to 1995. Engeström applies and develops cultural-historical activity theory as a framework for the study of transformations and learning processes in work activities and organizations. He is widely known for his theory of expansive learning and for the methodology of developmental work research.

'… rich in data and conceptual analysis … admirable scholarship …' Mike Bonner, PsycCRITIQUES

• 1. Teams and the transformation of work; 2. Disturbance management and masking in a television production team; 3. Teamwork between adversaries: coordination, cooperation, and communication in a court trial; 4. Displacement and innovation in primary care medical teams; 5. Crossing boundaries in teacher teams; 6. Knowledge creation in industrial work teams; 7. Teams, infrastructures, and social capital; 8. From iron cages to webs on the wind; 9. Knotworking and agency in fluid organizational fields.