The purpose of this book is to change the conversation about teacher induction, preparation, and development and how we create effective teachers. Our national discussion about how to create effective teachers needs to move away from how higher education can do a better job preparing our teachers and move toward how our local schools can do a better job inducting, preparing, and developing our teachers over a full career. There are two interconnected and irrefutable reasons for this. First, school culture supersedes all rational strategies for teacher development, and, second, teachers learn to teach in the schools where they work, not in higher education or any of the alternative routes which the ineffectiveness of higher education teacher preparation have caused to emerge. With the affirmation of these postulates, this book clarifies that teachers are at their best when they are working together in collaborative cultures where teacher thinking and decision-making lead schools in continuous improvement and change. Elaborating on the importance of these best conditions for optimal teacher development, this book will insist that it is the entirety of a school culture that produces effective teachers, and schools with authentic learning communities produce the cultures that produce effective teachers.