Localization technology has become indispensable in a wide variety of application scenarios, such as search and rescue, robotics control, node deployment and management, and location-based services. This book saves researchers and students time by scanning crucial information that is scattered throughout research journals and conference proceedings. It focuses on the localization problem and current research on this subject. The authors present measurement noise models and explore classification of localization problems based on operational environments. They also offer a detailed analysis of important localization algorithms, providing a rich trail of citations for further study. The book also includes source code, data sets, summaries, and exercises to facilitate understanding.