A dynamic kinetic relief sculpture by Yvaral (Jean-Pierre Vasarely), *Interférence (2M)* combines screenprinted white geometric forms on a vivid blue painted wooden panel with three-dimensional elements of metal tubes and elasticated string. The work exemplifies the Op Art movement's exploration of visual perception, as the interplay between the flat printed surface and the protruding physical components creates a sense of optical vibration and movement. True to its title, the piece generates a compelling sense of interference — where competing visual planes and materials merge to challenge the viewer's sense of depth and spatial reality.