This book is devoted to the study of inventory systems with special focus on deteriorating items inventory. Inventory System is one of the main stream of the Operations Research which is essential in business enterprises and Industries. Interest in the subject is constantly increasing, and its development in recent years closely parallels the development of operations research in general. Some authors even claim that "More operations research has been directed towards inventory control than toward any other problem area in business and industry" and among these the deteriorating items...