Content: Chapter 1 Electric Energy Systems: An Overview[Ignacio J. Perez-Arriaga, Hugh Rudnick, and Michel Rivier Abbad]Chapter 2 Steady-State Single-Phase Models of Power System Components[Antonio F. Otero and Jose Cidras]Chapter 3 Load Flow[Antonio Gomez-Exposito and Fernando L. Alvarado]Chapter 4 State Estimation[Antonio Gomez-Exposito and Ali Abur]Chapter 5 Economics of Electricity Generation[Francisco D. Galiana and Antonio J. Conejo]Chapter 6 Optimal and Secure Operation of Transmission Systems[Jose L. Martinez-Ramos and Antonio J. Conejo]Chapter 7 Three-Phase Linear and Nonlinear Models of Power System Components[Enrique Acha and Julio Usaola]Chapter 8 Fault Analysis and Protection Systems[Jose Cidras, Jose F. Minambres, and Fernando L. Alvarado]Chapter 9 Frequency and Voltage Control[Claudio A. Canizares, Carlos Alvarez Bel, and Goeran Andersson]Chapter 10 Angle, Voltage, and Frequency Stability[Claudio A. Canizares, Luis Rouco, and Goeran Andersson]Chapter 11 Three-Phase Power Flow and Harmonic Analysis[Wilsun Xu and Julio Garcia-Mayordomo]Chapter 12 Electromagnetic Transients Analysis[Juan A. Martinez-Velasco and Jose R. Marti]Appendix A Solution of Linear Equation Systems[Fernando L. Alvarado and Antonio Gomez-Exposito]Appendix B Mathematical Programing[Antonio J. Conejo]Appendix C Dynamic Models of Electric Machines[Luis Rouco]