Frederick Herzberg is renowned for the development of his Motivation-Hygiene Theory. His theory is based on the fact that employees must be satisfied with their jobs and avoid job dissatisfaction. To this end, Herzberg recommends focusing on hygiene factors to avoid job dissatisfaction and focusing on motivational factors to stimulate job satisfaction. Thus, employees achieve job satisfaction and positive performance.2010IntroductionTraditionally, employee performance effectiveness was a major concern of managers and theorists researching management issues and developing management theories. Opinions on the effectiveness of employee performance and its improvement vary constantly. The variety of theories was developed to stimulate the improvement of employee effectiveness and productivity through the implementation of new methods offered by different theorists. In this regard, job satisfaction has proven to be one of the key factors determining the effectiveness of employee performance. At the same time, many researchers have failed to understand the full scope of factors that influence job satisfaction. In this context, the research and Motivator-Hygiene theory developed by Frederick Herzberg are particularly noteworthy. In fact, F. Herzberg develops the idea that there are two groups of factors that influence job satisfaction and, therefore, the effectiveness of employees' work: on the one hand there are motivator factors, which motivate employees and lead to their job satisfaction, while, on the other hand, there are hygiene factors that prevent job dissatisfaction, but both groups of factors are essential to maintain positive employee performance because,...... in the center of the paper ... job satisfaction. Key hygiene factors are supervision, working conditions, pay, safety and others. The key motivating factors are the work itself, advancement, success, recognition and responsibility. All factors are important and both hygiene and motivational factors should be present to keep employees satisfied with their jobs. References: Chyung, S.Y. (2007). Fundamentals of educational and entertainment technology. Massachusetts: HRD Press. Feder, B. J. (2000). “F.I. Herzberg, 76, Professor and Business Consultant,” New York Times, February 1, 2000.Herzberg, F.I. (1987). “Again: How to Motivate Employees?”, Harvard Business Review, September/October 87, vol. 65 Issue 5, p109-120Herzberg, F. (1959). Motivation at Work, New York: John Wiley and Sons.Herzberg, F.(1976). The managerial choice: being efficient and being human. Homewood, Ill.: Dow Jones-Irwi