This concise action guide gives PreK–5 leaders a roadmap for sustaining literacy improvement grounded in the science of literacy and the other major forces reshaping the field today. Written for leaders at every level, from policymakers to principals, the book describes the shifting role of literacy in society and presents current research, tools, and processes that anyone leading literacy improvement needs to know. Leaders learn to put high-impact practices into place in three key areas: the instructional core, assessment, and professional development. Practical features include vignettes illustrating a range of leadership roles and issues, along with downloadable reproducible tools that support self-study of leadership strategies.