Questions of privacy are critical to the study of contemporary media and society. When we're more and more connected to devices and to content, it's increasingly important to understand how information about ourselves is being collected, transmitted, processed, and mediated. This book provides a comprehensive overview of both the theory and reality of privacy and the media in the 21st Century. Offering a rich overview of this crucial and topical relationship, the title: explores foundational topics of journalism, the Snowden leaks, and encryption by companies such as Apple; considers commercial applications including behavioral advertising, big data, algorithms, and the role of platforms like Google and Facebook; introduces the role of the body with discussions of emotion, wearable media, peer-based privacy, and sexting; and encourages students to put their understanding to work with suggestions for further research, challenging them to explore how privacy functions in practice.