Maps and Technology -- Lyon and Barcelona - two Case-Studies -- Mapping Humanities -- Comment. This book is the product of an eponymous workshop, which took place in Erfurt in May, 2012, and which has since then been supplemented with four further contributions. The topics focus on the potential mapping of perceived urban space and spatial hierarchies as a consequence of social usage (undertaken by a variety of active participants) together with spatio-temporal changes as a result of factors such as demographic urban growth and decline. Historians, cartographers and geographers are brought together to present and discuss different models, ideas and new methods of spatial analysis and modes of representing changes in perceptions. The two main subjects are: the epistemology of spatial change and the question of (historical) media and adequate presentation. This work represents a first step toward the development of a new model for mapping urban changes and spatial relations concerning the past, present and future.