Oil on canvas, 71 1/4" × 7' 2 1/4" (181 × 219.1 cm). Painted at [[Issy-les-Moulineaux]], this revolutionary work depicts [[Henri Matisse|Matisse]]'s studio saturated in a flat Venetian red, with the room's contents rendered as outlines — a radical flattening of pictorial space that influenced generations of artists.