Abstract

“Public” is here treated by its three extensions: most broadly, from the merely extrasomatic, where users of representations are initially distinguished from makers, through ‘published’ or for the general public, to the governmental, official—where the discussion begins, before turning in its second half to the more common, middle meaning. What is public in these ways, “spatial representation”, also has the different meanings of representation of space or representation by spatial means, and there are several kinds of space to be considered. The styles of the two halves contrast, that of the first being an inductive mapping of neglected conceptual terrain of directive representations, that of the second linear: a continuous argument in answer to a question regarding descriptive spatial representation in the digital age. The common thread is the public as users of all such cognitive artifacts, and this use as interactive, with a range of implications for social collectivity