This book is intended for professionals, researchers and students who have interest in access to and visualisation of information. Research areas such as data collection approaches, sensor networks, data processing, 3D reconstruction, database management, spatial analysis and decision support systems are covered in a minor way or not addressed. This book reflects recent challenges, research, and developments in European countries. We hope that this focussed publication will make it even more interesting for colleagues and professionals working in this area of endeavour in other parts of the world