This collective volume, prefaced by the distinguished scholar in the field of teacher education, Robert Cowen, includes original studies and research in the areas of professional development, in-service training, and vocational training of teachers in the modern world, within the framework of their respective educational systems.

This collective work encompasses recent research data and trends from the above field with 29 corresponding studies, which cover a wide array of contemporary systems of professional development, in-service training, and teacher training internationally.

Particular emphasis is placed on the challenges faced by these educational systems of professional development, in-service training, and teacher training in the modern world. The goal is to cultivate reflection, as well as to adopt appropriate practices that focus on effective program design and 'train' an effective educator.

The challenges, similarities, and differences, as well as the problems faced by contemporary systems of professional development, training, and in-service training for teachers in the world today, also represent a crucial and necessary area of research and reflection in this field in the 21st century.