A masterwork of Mexican modernism, Manuel Álvarez Bravo's *Parábola Óptica (Optic Parable)* transforms a humble optician's shop window into a meditation on vision, reflection, and illusion. The photograph plays with layers of perception, as painted eyes and optical instruments peer back at the viewer through glass, blurring the boundary between observer and observed. Signed and annotated "Mexico" in pencil in the margin, this gelatin silver print stands as one of the artist's most celebrated and philosophically resonant images.