Examines the way complex systems affect interaction at work through video-based field studies.

1. Technology and social action: computers and situated conduct; 2. Documents and professional practice: 'bad' organisational reasons for 'good' clinical records; 3. Animating texts: the collaborative production of news stories; 4. Team work: collaboration and control in London Underground line control rooms; 5. The collaborative production of computer commands; 6. 'Interaction' with computers in architecture.