Continuous change in spatial regions -- Qualitative representation of change -- Image-schemata-based spatial inferences: The container-surface algebra -- A city metaphor to support navigation in complex information spaces -- Using hierarchical spatial data structures for hierarchical spatial reasoning -- Structuring space with image schemata: Wayfinding in airports as a case study -- Fiat and bona fide Boundaries: Towards an ontology of spatially extended objects -- A representation-oriented taxonomy of gradation -- Classification as an impediment to the reliable and valid use of spatial information: A disaggregate approach -- What maps mean to people: Denotation, connotation, and geographic visualization in land-use debates -- The algebraic structure of sets of regions -- Complex regions in topological queries -- A cognitive assessment of topological spatial relations: Results from an empirical investigation -- Voronoï diagrams on line segments: Measurements for contextual generalization purposes -- A qualitative coordinate language of location of figures within the ground -- Identification of fuzzy objects from field observation data -- Long-term spatial representations from pictorial and textual input -- Feature accumulation and route structuring in distance estimations - An interdisciplinary approach -- The perception and cognition of environmental distance: Direct sources of information -- Improving multi-purpose GIS design: Participative design -- Self-organization, cities, cognitive maps and information systems -- Cognitive requirements on making and interpreting maps -- From knowledge to words to wayfinding: Issues in the production and comprehension of route directions -- Spatial representation for pragmatic navigation -- Partition and conquer -- Supporting emergence in spatial reasoning with shape algebras and formal logic -- Linear constraints: Geometric objects represented by inequalitiesl -- An event-based approach to spatial information -- Geocognostics - A new framework for spatial information theory -- Graphical modelling for geographic explanation -- Experiments using context and significance to enhance the reporting capabilities of gis -- Automatic summarization of radiographic imagery -- An automated system for name placement which complies with cartographic quality criteria: The hydrographic network -- Agent-based simulations of a city dynamics in a gis environment -- A logical approach to incorporating qualitative spatial reasoning into GIS (Extended Abstract) -- User interaction in a sketch-based GIS user interface -- Metrical refinement of topological relations -- Approximation of topological relations between fuzzy regions satisfying a linguistically described query.