A two-decade survey of the artist evoking the "essence of an image" through various layering techniques The London-based artist Idris Khan (born 1978) is internationally recognized for a densely layered, poetic body of work imbued with echoes and reverberations. Across painting, photographic prints, watercolors, works on paper, sculpture and video, his art consistently engages with repetition and ritual. To that end, Khan...