An advanced course that focuses on the principles, models, and applications of queuing theory in analyzing and optimizing the performance of systems involving waiting lines. Queuing theory provides a systematic framework for studying the behavior of waiting lines, predicting system performance, and making informed decisions to enhance efficiency and customer satisfaction. This course introduces students to the theory, models, and techniques of queuing theory, equipping them with the skills to analyze, model, and optimize queuing systems in various real-world contexts. Through a combination of theoretical concepts, practical examples, and hands-on exercises, students will develop proficiency in using queuing theory to analyze waiting line phenomena and make informed system design and management decisions.