Book excerpt: "The demands of teaching can be overwhelming, not only for beginning teachers but also those who are veterans in the teaching profession. The complexities of balancing the need to teach for depth of mathematical understanding while dealing with the pressure of preparing students for high-stakes testing can be challenging and frustrating. The teaching community recognizes the importance of mentoring and how it can give teachers the support and encouragement they need not only to survive the challenges of teaching mathematics but also to develop as dedicated professionals. This book serves as a "how to" for individuals who participate in formal or informal mentor training or serve as instructional coach, peer coach, lead teacher, collaborative peer, department chair, administrator, critical friend, team leader, university supervisor, or department or grade-level colleague. It challenges the reader to think differently about what being a mentor means."--Back cover.