This qualitative exploratory study examines the nature of teacher leadership in Jyvaskyla, Finland, by examining the principals' and teachers' perceptions of the phenomenon. There is a substantial international literature focusing on teacher leadership that has contributed to the grounding of this study (Harris, 2003a). Although a significant part of the literature on teacher leadership is generated by scholars in the United States of America, Canada, and the United Kingdom, few studies have been published that focus on the Finnish school context. This study makes a contribution towards...