"The Medium Is the Massage" is a book by Marshall McLuhan published in 1967. It explores the idea that the medium through which information is conveyed significantly influences how that information is perceived. McLuhan argues that the characteristics of each medium shape our experiences and understanding, often more than the content itself. The book is known for its unique design, featuring a mix of text and images that reflect its themes. McLuhan's famous phrase, "the medium is the message," emphasizes that the form of communication can alter societal dynamics and individual perceptions, highlighting the importance of media literacy.