The main aim of this book is to assess Employees' job satisfaction and its influence on the performance of worker or employees. Employee satisfaction has got considerable attention and has become prime issue for the organization desiring to stay in business, to satisfy their customer, to maximizing profit or to gain competitive advantage.In the analysis, it is found that there is a positive relationship between job satisfaction and employees' work performance. That is high level of fair promotion, reasonable pay system and good working condition leads to high level of employees' performance.