The aim of this practical textbook is to provide trainers of the trainers and medical professors all the necessary materials to conduct “Training of Trainers (TOT)” course. The book serves as a compendium and a useful textbook for professional trainers, medical professors, and training experts working in the field of professional training.The comprehensive course described in this textbook provides all the general principles of training and development. The knowledge and skills acquired during the course will help the participants to conduct successful training courses.The textbook and the course it describes is expected to be of great interest to trainers and medial professors who want to learn more about the principles of training and development, and how to apply knowledge and effective training skills when conducting a training course. The textbook is also expected to be of interest to training experts working with healthcare and medical organizations.