Mobility of people and goods is essential in the global economy‎.‎ The ability to track the routes and patterns associated with this mobility offers unprecedented opportunities for developing new‎,‎ smarter applications in different domains‎.‎ Much of the current research is devoted to developing concepts‎,‎ models‎,‎ and tools to comprehend mobility data and make it manageable for these applications‎.‎ This book surveys the myriad facets of mobility data‎,‎ from spatio‎-temporal data modeling‎,‎ to data aggregation and warehousing‎,‎ to data analysis‎,‎ with a specific focus on monitoring people in motion ‎(‎drivers‎,‎ airplane passengers‎,‎ crowds‎,‎ and even animals in the wild‎)‎‎.‎ Written by a renowned group of worldwide experts‎,‎ it presents a consistent framework that facilitates understanding of all these different facets‎,‎ from basic definitions to state‎-of‎-the‎-art concepts and techniques‎,‎ offering both researchers and professionals a thorough understanding of the applications and opportunities made possible by the development of mobility data‎.‎