He lectured all over the world, was published internationally, and collaborated closely with manifold scholars and thinkers, McLuhan among them.
In 1957, he assumed the position of Head of Design and Installations at the Royal Ontario Museum (ROM) in Toronto, a post which he retained for a decade, until 1967.
[2] From 1967 until 1975, Parker became involved with McLuhan's Centre for Culture and Technology at the University of Toronto as a research associate.
[3] It was during these years that he collaborated most closely with Marshall McLuhan, co-authoring two titles, Through the Vanishing Point: Space in Poetry and Painting and Counterblast.
[1] Parker retired from his scholarly career in 1976, whereupon he moved to British Columbia to live and paint in the Kootenay Mountains.