Illuminates the ecological conditions under which teachers can achieve agency and highlight the implications for practice, policy and research. This book significantly contributes to our understanding of teachers' professional agency. The authors draw together different lines to explore what teacher agency entails, including exploring data from their own empirical research on teachers in the context of a large-scale educational reform. Their conceptualization of teacher agency is an interactive one with relevant implications for the whole educational system and on all its levels. Teacher Agency is a book that should be read by all who wish teachers to be active and engaged participants in such a system and, through that, can really make the difference.