This book was carried out to ensure about how employee sharing the knowledge, how interaction between group and analyze behavior of employee in an organization. It focuses about the attitude of the employee, knowledge sharing, and citizenship behavior of employee. This study helps to create framework of controlling knowledge process and attitude of employee and behavior changes of employee in an organization. This book contain number of information table, summary, useful diagrams. It provides an in-depth exposition of the three concepts: Knowledge sharing, Job attitude and organizational citizenship behavior. This study will help to organization to enhance them employee and employer relationship.