The Architect of the Streets: The Legacy of Blek le Rat In the labyrinthine streets of Paris, where history and modernity collide against limestone facades, a revolution began in 1981. It did not arrive with the loud, sweeping strokes of a traditional muralist, but through the silent, precise application of stencils. Xavier Prou, known to the world as Blek le Rat, emerged from Boulogne-Billancourt as a pioneer who would fundamentally…