[1] He works in different media and areas, sometimes with the help of volunteers, making installations and sculpture using different materials, including trees, large-scale drawings, prints and sound art.

[5] In 1993, Ted Fraser curated Reinhard Reitzenstein: The World Tree for the Confederation Centre Art Gallery and Museum in Charlottetown.

[7] In 2017, for the Bonavista Biennale, he created a site-specific sculptural installation of an inverted tree piece, Waiting/Watching/Waiting that took an entire village of helpers in Newfoundland to make.

The trees, carefully selected for their height and strength, stripped of their bark and sealed with red ochre and linseed oil were inverted into deep holes that had been dug into a rocky causeway.

[8] In 2019, he created a complex tree installation which included large scale woodcut plates and prints at the Buffalo, New York Arts Studio.