This classroom-tested text offers students an overview of classical and recent state estimation techniques in power systems. It includes well-established, widely accepted information presented in a didactic way and new insights and perspectives on state estimation developed by the author while conducting some of the most cutting-edge research in the field. This well-balanced mix of theory and practice will enable readers to understand state estimation techniques quickly. The book includes a user-friendly open-software tool integrating computer-based examples throughout the text. Case studies based on practical applications provide readers with a solid understanding of state estimation in real-world power systems. Power System State Estimation and Forecasting: Fundamentals and Advanced Topics is designed for upper-level undergraduate and graduate-level courses in electric power systems. It is also an essential professional reference on electric power systems for practicing engineers and researchers. All state estimation steps are addressed; Includes case studies and open-software tools and examples; Provides coverage on state-of-the-art power system state estimation.