This collection draws from the best of the "ERS Spectrum" principalship literature over the past five years to provide K-12 principals with a guide to reflective practice. The resource provided here is distinctive in the way it addresses the dual roles of the principal--as instructional and managerial leader--in a format that is designed both for individual reflection and growth and for discussion in peer groups and mentoring support. Each article is followed by a series of questions designed for reflection and discussion, to assist principals, whether new or experienced, in examining their progress and goals in the evolving responsibility of leadership.