Making Every Maths Lesson Count is a well-informed, systematic and engaging guide to successful mathematics teaching. Drawing upon her own experience and that of other respected professionals in the field, McCrea offers clear guidelines for effective practice in secondary mathematics teaching and learning. The book is clearly written and jargon-free, and McCrea's recommendations are supported by reference to published research from readily accessible sources including academic papers, websites and blogs. From my standpoint as a professional with over 20 years' experience in mathematics teacher education, I can see that this book would be effective both as a guide for novice teachers and as a source of ideas and challenge for experienced practitioners. McCrea is a knowledgeable author who conveys her ideas with passion and enthusiasm.