Harry Broström was discovered by a true legend in the Stockholm art world in 1948. That year, Harry Booström made his Stockholm debut at Agnes Widlund's gallery, “Konstsalongen Samlaren” at Birger Jarlsgatan 1.

As an avant-garde gallerist, Agnes Widlund (1910-2005) went down in history, showing art from 1943-1977 by Carl Kylberg, Helmer Osslund, Lage Lindell, Harry Booström and Olle Baertling, among others, as well as international greats such as Picasso, Matisse, Chagall, Paul Klee and Henry Moore. Renowned art collector Theodor (Teto) Ahrenberg created a world-class art collection with Agnes Widlund's help. This included Henri Matisse's collage Apollo, which is now on display at Moderna Museet.

Harry Booström received his artistic training at Isaac Grünewald's painting school during the years 1941-45. Thereafter, Harry Booström made several study trips to France and Paris, among other places. Over the years, Harry Booström participated in a number of acclaimed exhibitions, including Høstudstillingen/Den Frie Udstilling in Copenhagen, Espace, Stockholm, Réalités Nouvelles, Paris, and Stockholmskonkretisterna in Halmstad. Harry Booström was a member of the international Groupe Espace, which promoted greater collaboration between artist and architect.

Harry Booström is represented at several art museums in Sweden. Moderna Museet in Stockholm owns seven works by Harry Booström.

HM King Gustaf VI Adolf was a devoted collector of modern art. In his will, HM King Gustaf VI Adolf (1882-1973) donated four works by Harry Booström to Moderna Museet.