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The Internet is a very large network with a complex array of control algorithms designed to facilitate data transfer by the users who use it everyday. Network Optimization and Control is aimed at understanding how such control algorithms can be designed for both wired and wireless networks. The approach is primarily based on optimization and control theory, and studies the problem in terms of designing controllers that would make optimal use of network resources. These controllers can be translated into protocols for computers that allow the Internet with many millions of flows to harmoniously adapt to changing traffic loads while maintaining good performance. Network Optimization and Control is the ideal starting point for a mature reader with little background on the subject of congestion control to understand the basic concepts underlying network resource allocation. Though self-contained in itself, there is also an extensive reference list that the interested reader could consult o obtain a deeper understanding of the topics covered. By providing a foundation for understanding the analytical approach to congestion control, the authors hope to encourage both analysts and systems designers to work in synergy while developing protocols for the future Internet.