The incorporation of the knowledge that people have about their surroundings including GIS and cartography, in order to make spatial information and decision support more accessible (here, naive means instinctive, not stupid, geography). ‘The naive geography world is based on the human mind…It is the set of informal ideas concerning geographical relationships’ (M. A. Nelson 2003). For a comprehensive review of naive geography, see Egenhofer et al. in A. Frank and W. Kuhn, eds (1995).