2.1 Introduction2.2 Routh–Hurwitz Stability Criterion2.3 Nyquist Stability Criterion2.4 Control System Structures and Sensitivity Functions2.5 Reference Following and Disturbance Rejection2.6 Disturbance Rejection and Noise Attenuation2.7 Robust Stability and Robust Performance2.8 Summary2.9 Further ReadingProblems