This third book in the Information Age book series, International Research on School Leadership, focuses on the changing nature of instructional leadership in the 21st century. Our goal is to examine instructional leadership from multiple educational and international perspectives. Unlike many leadership books that focus on conceptualizations and personal narratives, the seven chapters provide empirical evidence of how instructional leadership is evolving in the 21st century. From the effective schools research of the 1980s to today's relentless calls for improved student performance,...