This resource presents readers with a comprehensive view of radio-frequency (RF) positioning. The book is organized to allow readers to progress at a fast pace, from the fundamentals of RF positoining to the use of advanced tools such as artificial intelligence algorithms and application development environments. The first part of the book covers the fundamentals of RF localization. The second part addresses the applications of those fundamentals in several types of wireless networks and technologies such as cellular networks, WI-FI, Bluetooth, sensor networks, ultrawideband, and global navigation satellite systems. The book concludes by discussing several tools that enable rapid development of positioning applications for mobile devices.