Already by 1960, at age 21, he had his first major show at the Montreal Museum of Fine Arts.
He spent much of the 1960s living in New York City and becoming part of the abstract expressionist scene there.
His art at that time combined geometric forms with splashed paint, and he experimented with fluorescent colors and neon light art.
In the early 1970s his compositions were based on square forms, but by the late 1970s they shifted to linear patterns that resembled abstract landscapes.