Ink bleeds through paper. Draw around those patches, lines and dots, and you get a patchwork ‘map’ that looks like roads and boulevards, streets and squares. A change of colour for city blocks. Villages line up on roads between fields. Some streets are tree lined, others are concrete. Does it show your age? Are you industrial or agrarian? Modern or ancient? Fortified? Or do you see veins, arteries and capillaries?