The piece in your July 28 issue on “The Meaning of 
the Message” does not give the reader any idea of 
what I mean by a medium.

Every medium or technology creates a service 
environment. Thus the motor car creates 
super-highways, suburbs, gas stations, etc. It is 
this environment of service and disservice which I 
call medium. Since this environment of services is 
a kind of “text,” it has its own peculiar syntax and 
grammar. It is this medium which invades and 
reshapes every aspect of the social and psychic 
life of the users of the technology, regardless of 
what the car or radio or TV set is used for. Xerox,