The paintings of Belgian-French artist Joseph Lacasse predominantly explore the theme of light. Born in 1894 into the desolation of a working-class family in Tournai, Lacasse's artistic vocation was first outlined at the local stone quarries where he worked as a young teenager. Lacasse was drawn to the austere structure of the stone, the light reflections of which he intuitively rendered in a fragmented way. When in 1912 Kandinsky published a manifesto about abstract art, he was unaware that his theories had already been put into practice by the teenager Joseph Lacasse. Whereas Kandinsky reached abstraction through a solid intellectual preparation, Lacasse found himself on the same road through pure and experimental intuition. The refraction of the light into the colour-prism whilst cutting the stone with water informed Lacasse's oeuvre throughout his career.
During the 1920s, Lacasse's acquaintance with Robert Delaunay was crucial to his colouristic development.

The works of Lacasse are included in the following museums: Musée d'art moderne de la Ville de Paris, Paris; Musée national d'art Moderne, Centre Pompidou, Paris; Musée des Beaux-Arts, Brussels; Musée de Tournai, Tournai; Tel Aviv Museum of Art, Tel Aviv; Eilat Museum, Eilat; Carnegie Institute, Pittsburgh; National Gallery of Victoria, Melbourne.