chapter 1 Introduction -- chapter 2 Key ideas of identification and experimental design -- chapter 3 Locally optimal designs for stationary sensors -- chapter 4 Locally optimal strategies for scanning and moving observa- tions -- chapter 5 Measurement strategies with alternative design objectives -- chapter 6 Robust designs for sensor location -- chapter 7 Towards even more challenging problems -- chapter 8 Applications from engineering -- chapter 9 Conclusions and future research directions.