Book excerpt: This book is a collection of the best papers originally presented as state-of-the-art reports or tutorials at the Eurographics '91 conference in Vienna. A choice has been made giving priority to timeless information. Another goal was to cover all aspects of computer graphics - except hardware - as completely as possible from modelling to advanced visualization and communication. The ten contributions by internationally renowned experts fulfil this goal perfectly. Some important problem areas treated from different viewpoints thus enhancing and deepening the reader's perspective.