This book provides a comprehensive discussion on some of the key topics in radar imaging signal processing, and discusses image reconstruction from SAR (synthetic aperture radar) raw data. A key focus is to describe motion compensation based on motion sensor data or data-driven techniques to overcome the challenges faced when the motion sensors on radar platforms have poor accuracy. It discusses image formation algorithms and provides MATLAB codes for typical algorithms to overcome the challenges facing accurate image formation. The book is written in an easy-to-understand manner and will be useful to both professionals in radar signal and image processing, and readers without a background in radar.