This book examines the diverse responsibilities of the 21st century principal, who is tasked with continuous school improvement. Recognizing that principals must lead educators and staff in all facets of school life, this book reviews research-based strategies, practices and theories that can be readily translated into the enhanced praxis. The authors present an in-depth analysis into principal identity, working effectively with families, how a collaborative school culture can offer dividends, helping teachers educate an increasingly diverse student body, and successful instructional leadership approaches. Additional emphasis is placed on school law, teachers’ unions, hiring and evaluation, budgeting, curriculum and program assessment, professional development, and the use of technology. Notably, throughout their investigation, the authors bear in mind cutting-edge practices that can be employed in these areas to leverage the best from schools and those that inhabit their halls. The reader will be left with an expanded understanding of principal practices that directly and indirectly improve student achievement as well as a resource section for further consideration and use.