Introduction to the Leadership Professional Development Book Gung-Ho! Educators, from novice to veteran, will all reap the benefits from participating in and reflecting on this book study/field guide experience in an on-going professional development leadership activity over the course of several weeks. This resource can be utilized and implemented in many different facets and scenarios, in the school setting, to develop teacher efficacy and leadership skills – as well as – with school site administrators in an effort to continue to refine his/her effective leadership and supervision skillset.