More than 2,000 entries have been revised, and over 500 new terms have been added to reflect current theoretical terminology, including concepts such as artificial intelligence, cisgender, fake news, hive mind, use theory, and wikiality. The dictionary also bridges the gap between theory and practice, and contains many technical terms that are relevant to the communication industry, including dialogue editing, news aggregator, and primary colour correction.

The text is complemented by biographical notes and extensively cross-referenced, while web links supplement the entries. It is an indispensable guide for undergraduate students of media and communication studies, and also for those taking related subjects such as television studies, video production, communication design, visual communication, marketing communications, semiotics, and cultural studies.