Many people think that economy is just about numbers, mathematics, theories, etc. In order to change their mind, these people should study the nonprofit sector. Obviously, if we want to understand how this sector operates, we have to study figures, but a significant part of the areas connected to this sector cannot be "measured" by numbers. When studying the voluntary sector, we meet personal problems, personal needs, different types of people from all parts of the life with their hobbies and habits, communication at citizen level, solidarity and, first of all, we feel our personal...