Marshall McLuhan (Herbert Marshall McLuhan, 1911–1980) formulated one of the most recognisable propositions in communication theory: “the medium is the message”. With it, he argued that communication technologies affect society through their own characteristics, beyond the content they carry. His work connected literary criticism with the study of advertising, printing and electronic media. His influence was considerable, but it was accompanied by disagreements over the accuracy and explanatory power of his theories.
He was born on 21 July 1911 in Edmonton, Canada, and grew up in Winnipeg, where his family moved in 1915. His mother was a teacher and later an actress, while his father’s real estate business failed at the start of World War I. At the University of Manitoba, he began studying engineering but switched to the humanities after a year. He earned a bachelor’s degree in 1933 and a master’s in English literature in 1934, before continuing his studies at Cambridge.
At Cambridge, he was influenced by New Criticism and its emphasis on developing perception, elements he later connected with the study of technological forms. Reading G. K. Chesterton also contributed to his journey from agnosticism to Catholicism, which he embraced in 1937. His faith remained largely a private matter, although he sometimes linked it to communication media in his personal correspondence. His doctoral research concerned the history of grammar, logic and rhetoric.
He initially taught in the United States, including at Saint Louis University, and in 1939 married the teacher Corinne Lewis, with whom he had six children. The war led him to complete his dissertation from the US, and he was awarded his doctorate in 1943. In 1946, he settled at the University of Toronto, which became the main base of his career. There, he was influenced by the economist and communication scholar Harold Innis, particularly regarding the psychological and social consequences of writing and printing.
His first major book, The Mechanical Bride: Folklore of Industrial Man (1951), examined advertising and mass culture through 59 short essays. Taking advertisements and published material as his starting points, he analysed their persuasion techniques, imagery and social assumptions. He also organised seminars on communication and culture and co-founded the journal Explorations. The University of Toronto established the Centre for Culture and Technology in 1963 in an effort to keep him at the institution.
In The Gutenberg Galaxy: The Making of Typographic Man (1962), McLuhan explored how writing, printing and electronic media rearrange the relationship between the senses and affect social organisation. In his interpretation, printing strengthened the dominance of sight, sequential thinking and specialisation. He connected these changes with the development of individualism, nationalism and other characteristics of Western modernity. The book won an award in Canada, but the breadth of its historical connections also raised doubts about his attention to specific details.
In his thinking, the concept of the “global village” described the growing interdependence created by electronic media. He believed this could shift societies from individualism towards more collective forms of identity, with characteristics of oral communities. However, he did not present this change as an automatic improvement: he also pointed to the tensions of constant interaction. His descriptions of computers as tools for communication and personalised information retrieval were later read as anticipating the World Wide Web.
In Understanding Media: The Extensions of Man (1964), he developed the proposition that media are extensions of human beings and create new environments for living. He used the electric light bulb as an example: without carrying articles or broadcasts, it allows activities in spaces that would otherwise be dark. He also distinguished “hot” media, which provide more sensory detail, from “cool” media, which require greater participation to fill in that detail. The distinction concerned a scale of participation, with examples such as cinema, comics and 1960s television.
These positions faced substantial criticism, particularly when McLuhan downplayed the importance of content relative to the medium. Umberto Eco argued that his concept of the medium conflates the channel, the code and the message. Raymond Williams criticised his technological determinism: if technology is considered the main cause of social change, other historical factors are reduced to effects. Other critics identified contradictions, exaggerations and vagueness in his aphoristic writing style.
His public profile peaked in the late 1960s, while the needs of his large family also led him into advertising work and consulting arrangements with companies such as IBM and AT&T. In September 1979, he suffered a stroke that affected his speech, and he died on 31 December 1980 without having fully recovered. The spread of the Internet renewed interest in his work. Discussion of it continues to concern both the influence of media on perception and the limits of an explanation of society that gives technology a leading role.
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