a little help

[allenbarry]

Hi, I'm having trouble finding information on the history of architectural representations.
I think Tom Porter's "How Architects Visualize" has a chapter called "A Short History of Spatial representation.
But I can't get a hold of the book.

Does anyone have it, or could anyone give me a really quick, rough timeline of arch. representation formats
(axon, collage, etc.), for just the 20th Century?

If anyone can help, I would really appreciate it.