Christopher Day and Judyth Sachs have done a remarkable job of pulling together an outstanding collection of essays on professional development that reflect its stunning diversity in different regions around the world. They have done for readers what no one else has accomplished in nearly a quarter century: Combine in a single volume a clear and concise description of professional development’s past, present, and projected future internationally.†Thomas R. Guskey, University of Kentucky. "an engaging text through out and can be dipped in to or read from beginning to end... The editors and authors of this book have done a great service to teachers and professional development educators worldwide" Journal of Inservice Education