should really read his books. So he picked up 
Empire and Communications  and it absolutely 
floored him. He said he wrote The Gutenberg  
Galaxy  straight from that book. He found out later 
that Innis had put it on the reading list. Within six 
weeks he had finished  The Gutenberg Galaxy , 
which was a footnote to Innis.

He said every line of Innis is like the condensation 
of a single book. There is so much reading behind 
every line, it is a kind of condensation of all that 
reading. Innis did that naturally, and McLuhan said 
“I just unpacked some of Innis’ stuff.” And that’s 
what The Gutenberg Galaxy  was about. So Innis