Agents of Change provides coaches, administrators, and teacher leaders with specific techniques, tools, and strategies for working with individual classroom teachers to plan and co-teach lessons, reflect on them afterwards, and find evidence of student learning. Lucy and Toni argue that when we infuse rich learning conversations into the professional discourse via coaching, study lessons, and regular meeting times for professionals to work collaboratively, we're able to examine what it takes on a day to day basis to reach every student in our classrooms. The transformative potential of content coaching to improve both teacher and student learning on a school-wide level has never been more clear.