The purpose of this book is to explain the function of the educationalists and educational research in Finnish society especially in developing the education system. Educational researchers, administrators, policymakers, teachers and other practitioners have worked in close cooperation in the development of the effective educational system. The aim has been to create equal learning opportunities. In this book Finnish educationalists describe education as understood and taught at Finnish universities, the roots of ongoing discussions in education, the function of educational knowledge in educating teachers and other experts, and the main contents in educating teachers and other educational experts.