Geography and graphic arts are presented as two activities which share many methods and produce similar objects. The first part of the paper deals with field works, sampling, which, for these two activities are first theoretical then practical. The second part focusses on the results of this theorized field work i.e. objects/knowledges which express on the one hand a scientific and aesthetic statement, on the other hand a personal position of the author within all the contingencies of the studied site and context.