"Collaboration in Teacher Education" is a scholarly book that addresses the dynamic changes in the education sector and the associated challenges for educators. It provides an in-depth insight into various approaches to mathematics teacher education that are based on collaborative cooperation. The authors examine the factors that influence the success of cooperative change processes and highlight the importance of collaboration in different cultural contexts. The book is divided into four main sections and includes fifteen chapters covering topics such as classroom coaching, mentoring, and co-learning agreements. The reflections and analyses in this book are aimed at educational researchers, students, and practitioners worldwide, offering valuable perspectives on the development and impact of collaborative approaches in teacher education.