+1 For the above mentioned book, especially if you are looking at computer systems/networks. For more pragmatic treatment found "Fundamentals of Queueing Theor

+1 For the above mentioned book, especially if you are looking at computer systems/networks. For more pragmatic treatment found "Fundamentals of Queueing Theory"[1] really good. [1] http://mason.gmu.edu/~jshortle/fqt5th.html http://mason.gmu.edu/~jshortle/fqt5th.html