William A. Sommers is currently the Learning Alternatives director and leadership coach for Spring Lake Park District 12 in Spring Lake Park, Minnesota, consultant, and author. He is the former director of leadership & organizational development for Manor ISD in Texas, the former executive director for secondary curriculum and professional learning for Minneapolis Public Schools, and a school administrator for over 30 years. He has also been a Senior Fellow for the Urban Leadership Academy at the University of Minnesota. Sommers also has served as an adjunct faculty member at Texas State University, Hamline University, University of St. Thomas, St. Mary's University, Union Institute, and Capella University.Sommers was on the Board of Trustees for five years and past-president for the National Staff Development Council. He has been a presenter in preconferences and conference sessions for 12 consecutive years and continues to work as a senior consultant for NSDC.Since 1990, he has been an associate trainer for the Center for Cognitive Coaching based in Denver, Colorado. He has been a program director for an adolescent chemical dependency treatment center and on the board of a halfway house for 20 years.Sommers has co-authored seven books, Living on a Tightrope: A Survival Handbook for Principals, Becoming a Successful Principal: How to Ride the Wave of Change Without Drowning, Reflective Practice to Improve Schools, a Trainer's Companion, Energizing Staff Development Using Video Clips, Leading Professional Learning Communities, and Principal's Field Manual . He is currently workingnbsp;on Trainer's Companion for Habits of Mind (2009).In addition to writing many articles regarding coaching, assessment, and reflective thinking, he also does training in reflective practice, leadership, organizational development, conflict management, poverty, thinking skills, brain research, and classroom management. From 1970 to the present, he has been in K-12 education as a teacher and principal in urban, suburban, and rural schools. Sommers is a practitioner who integrates theory into the learning opportunities he facilitates.
Jennifer York-Barr, Ph.D., is currently an Associate Professor in the Department of Educational Policy and Administration at the University of Minnesota, Minneapolis, where she coordinates and teaches teacher leadership, staff development, and educational administration.