The purpose of this book is to provide a general introduction of Industrial Relations with a critical analysis of Cox model of Industrial Relations and Trade Union Movement of Bangladesh. Now days in Bangladesh both public and private universities are teaching Industrial Relations as one of the major subjects of MBA and BBA program. This book will serve the academic purpose as well as to appeal to the largest possible readership and professional In Bangladesh mangers, supervisor and trade unionists confronting each other every day without understanding the process they are engaged. This book should also be useful to the public and specialist groups like teachers.