This fall, Heffel Fine Art Auction House celebrates 20 years of auctions. The only auction house in Canada to produce separate catalogues for each of its two live auction sessions (Post-War & Contemporary Art, with a Canadian focus on artists including Paul-Émile Borduas, Alex Colville, and Jeff Wall, and an exclusively historical Fine Canadian Art auction), Heffel has taken the occasion of its 20th anniversary to become more globally inclusive. For the first time, the house welcomes international post-war and contemporary consignments for its live auction, including Barbara Hepworth’s sculpture, Three Forms (Three Horizontal Curves), and two works by pop art icon Roy Lichtenstein. This season also sees pieces by members of the Group of Seven, as well as a rare Tom Thomson canvas rumored to be the last painting the artist completed before his mysterious death while canoeing in 1917. Three major paintings by Lawren Harris are a particularly exciting draw—the artist’s work, currently on view at the Hammer Museum in Los Angeles in a show co-curated by actor Steve Martin, is known for conveying the stark majesty of Canada’s wilderness. With 156 lots on offer, this 20-year anniversary collection could make for one of the most exciting auctions in Heffel history.