// Rafael Jesús Soto’s Untitled (Circles and Lines), created in 1970, is a screen print that exemplifies the artist's exploration of optical art and kinetic aesthetics. In this work, Soto uses a series of overlapping lines to create a sense of movement and visual depth. The composition features a central circular form that appears to be partially obscured by horizontal lines in black, green, and blue. The interaction of the lines with the underlying circle generates an optical illusion, where the viewer’s perception shifts depending on their focus and the angle of viewing. The addition of blue lines introduces a vibrant contrast, which enhances the dynamic quality of the piece. Soto’s work is known for its ability to manipulate the viewer’s visual experience, creating an almost three-dimensional effect on a two-dimensional surface. This limited edition print is an excellent example of his mastery in blending geometric abstraction with the perceptual effects of light and motion.