This is a revised and updated edition of this successful textbook. This book describes and assesses the nature and consequences of the ever-increasing number of mergers among corporations in control of media that deliver content to audiences worldwide. The author explains the issues in an accessible way and presents the views of a broad range of scholars. However, it focuses on much more than how global media corporations are organized and how they are changing. It also discusses the nature of their goals, how they are controlled, and controversies over their assumed power, and the implications of their continued growth for the future. The book is written for a broad audience-one that includes not only students in communications, journalism and so on, but concerned citizens, executives, officials, and policymakers.