An indispensable resource, this book provides wide coverage on aliens in fiction and popular culture. Provides cultural context in introductory essays on some of the key themes and contexts of alien representation Covers a broad scope, with more than 130 entries on different topics, and is written by nearly 90 researchers with diverse expertise Shows readers the varied ways that imagined aliens have become a part of popular culture Presents both familiar topics and more obscure topics in popular culture to provide new scholarship