This book presents a series of control and filtering approaches for stochastic systems with traditional and emerging engineering-oriented complexities. Each chapter includes investigations of stability, robust performance, reliability, and/or disturbance attenuation. The text describes novel methodologies that can be applied extensively in lab simulations, field experiments, and real-world engineering practices to address challenges such as random delays, randomly occurring nonlinearities, time-variant nonlinearities, and more. Thus, this book provides a valuable reference for researchers and professionals in the signal processing and control engineering communities.