Here are several brief video featuring media theorist Marshal McLuhan talking about his ideas about media:
A brief compilation of clips:
A 1977 lecture by McLuhan on “the medium is the message” in three parts:
And finally, Marshal McLuhan in Woody Allen’s movie Annie Hall:
I remember reading his book when it came out. Along with Eric Toffler’s book Future Shock it was very prescient, especially considering the present.
I think books are an extension of the mind, because that is how story is told and history reproduced.