McLuhan's Tetrad comprises 4 laws of media that can be used to analyse the effects of technological change on society, rather than the causes. Timothy Kraft describes the tetrad as: Enhance The technology must enhance some capability of the person. The medium is an extension of the person. Retrieve The result is a retrieval of... Continue Reading →

McLuhan is probably most popularly known for his theory succinctly posited "The medium is the message".  Federman offers a very clear explanation of this concept in his article "What is the meaning of the medium is the message?"  Federman explains that McLuhan considers the medium in quite broad terms, more so than perhaps first impressions... Continue Reading →