Alma Harris is Professor of School Leadership and Director of the Leadership, Policy and Improvement Unit at the Institute of Education, University of Warwick. She has published extensively on the theme of leadership and school improvement and her latest books include: Effective Leadership for School Improvement (2003) Routledge/Falmer; School Improvement: What's in it for Schools? (2002) Routledge/Falmer. Leading the Improving Department (2002) David Fulton. Her most recent research work has focused upon effective leadership in schools facing challenging circumstances and the relationship between teacher leadership and school improvement. She is currently working with the DfES, National College for School Leadership, General Teaching Council and NUT in a research and development capacity. Linda Lambert is a Professor Emeritus and the founding Director of the Educational Leadership Center, California State University. She has been a teacher, leader, principal, district and county professional development director, coordinator of a Principals' Center and Leadership Academy, and designer of four major restructuring programs. From 1989 to 1993 she worked in Egypt to set up a National Curriculum Center, and in Thailand and Mexico in leadership development. She is the author of several books including: Developing Sustainable Leadership Capacity in Schools and District; Building Leadership Capacity in Schools; The Constructivist Leader 2E and Who Will Save Our Schools: Teachers as Constructivist Leaders.