The recent rise of multimedia technology has turned visual communication into an everyday reality and made it necessary to achieve a better understanding of the role of diagrams and sketches in communication and in creative thought and problem-solving. Diagrammatic Representation and Reasoning is a wide-ranging, multidisciplinary overview of this area, covering relevant research in computer science, artificial intelligence, cognitive science and psychology. Key topics include:- Cognitive aspects of diagrammatic information;- Formal methods for computing with diagrams;- Applications of advanced diagrammatic systems. This book is a state-of-the-art survey that will be a valuable resource for researchers and students in the fields of cognitive science, artificial intelligence, human-computer interaction, and graphics and visualisation.