Patients and professionals perceive the rehabilitation process differently. Rather than as participation in a rehabilitation programme, the patients perceive their recovery as a learning process that enables them to master life in the 'biographical disruption' and 'loss of self' caused by traumatic injuries. We term their process of recovery 'biographical reconstruction'. For the role of professional expertise in the rehabilitation process, the implications of the patients' biographical reconstruction are hitherto not sufficiently understood. The project explores the processes of biographical changes and the imact of the professional rehabilitation interventions and support in these processes. the chosen group to study consists of people experiencing traumatic brain injury and multi-trauma.