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From my very limited google preview I take it the question is about an introduction to Harish Chandra's work described by emerton in a previous post he references. If you don't like the example approach (I don't either) take a peek from time to time at Varadarajan's (masterly) exposition "Harmonic Analysis on Reductive Groups" (Springer LN #576, 1977). The only examples there are those needed to start induction arguments or to do descent to centralizers. But he does lay out the plan very clearly along the way. For an exposition using a more modern approach to the discrete series, try Wallach's books "Real Reductive Groups." I have only seen Vol I (1988) but already that has some simplifications and appears more appealing to at least some students. For a truly modern approach, that is an interesting question.