This book investigates the relationships between organizational justice, nepotism, trust and organizational citizenship behavior of hotel employees in Tehran, Iran.The recent growth in the trust literature indicates that both researchers and practitioners are continuing to recognize the trust importance as a significant factor for determining organizational success and the well-being of the employees.The aim of this book is to add to the current debates by reporting on a study concerning the employee's perceived trust of their supervisor and organization and their outcomes in the organization. The book is invaluable for academics and tourism students including PhD and master, and is suitable as supplementary material for undergraduate courses ;such as, human resource managment, Organizational behaviour, introduction to management and so forth.