Finland has received very good results in international student achievement tests such as PISA and ICCS in the 21st century. Consequently, education authorities and researchers from all over the world have attempted to find reasons for Finland’s success. In this article, we are looking at Finnish education from the inside, from the perspective of Finnish teachers and schools. Our hypothesis is that Finnish teachers, who have a high-quality academic education and who work as trusted professionals, have played a key role in making such results possible. Thus, we will concentrate on Finnish teachers, their role in education as well as teacher education and training in this article.