The Language Gap provides an accessible review of the language gap research, illuminating what we know and what we do not know about the language development of youth from working and lower socioeconomic classes. Written to offer a balanced look at existing literature, this text analyzes how language gap research is portrayed in the media and how debatable research findings have been portrayed as common sense facts. This text additionally analyzes how language gap research has impacted educational policies, and will be the first book-length overview addressing this area of rapidly growing interest.