In December 2003, The Finance Project staff published and disseminated a paper that synthesizes the delivery and financing of professional development in education and gives an objective summary of the various debates in the field. This paper outlines the current status of both pre-service and in-service professional development for teachers, principals, and superintendents, including requirements for licensure, alternative routes to licensure, delivery of in-service professional development, and the difficult questions surrounding measuring effectiveness. The purpose of this guide is to provide information to those who are called upon to make decisions that affect training and professional development in education but who do not necessarily have a complete understanding of how the process currently operates and the debates in which the field is currently engaged. (Author)