Abstract
This article refers to the training of teachers, since it contributes the most to their professional development and emerges as an institution of strategic importance for educational organizations as well. First, after an introduction to the concept of training, the concepts of the professional and personal development of teachers are clarified and then forms, goals and methods of training are mentioned. Finally, the necessity of modern training programs and the importance of an effective training that contributes both to the continuous professional growth and development of teachers and to the modernization and development of the educational systems themselves is highlighted.
