Visual Correspondence uses data visualisation to makes sense of a person's life through their correspondence. Who they wrote to, who wrote to them, when and where - these flashes of detail unveil a rich narrative about people and our past through images. As well as providing tools to visualise huge collections of correspondence, in bringing together detail on 164,196 letters from 53 collections, Visual Correspondence provides a new way to explore the letters themselves. Links to the full text of the letters are provided were possible and added information helps put the letters in context.