This book is a collection of several tutorials from the EUROGRAPHICS '90 conference in Montreux. The conference was held under the motto "IMAGES: Synthesis, Analysis and Interaction", and the tutorials, partly presented in this volume, reflect the conference theme. As such, this volume provides a unique collection of advanced texts on 'traditional' com puter graphics as well as of tutorials on image processing and image reconstruction. As with all the volumes of the series "Advances in Computer Graphics", the contributors are leading experts in their respective fields. The chapter Design and Display of Solid Models provides an extended introduction to interactive graphics techniques for design, fast display, and high-quality rendering of solid models. The text focuses on techniques for Constructive Solid Geometry (CSG). The follow ing topics are treated in depth: interactive design techniques (specification of curves, surfaces and solids; graphical user interfaces; procedural languages and direct manipulation) and display techniques (depth-buffer, scan-line and ray-tracing techniques; CSG classification techniques; efficiency-improving methods; software and hardware implementations).

This collection of classic guitar studies is intended for the intermediate guitarist. As a whole, these etudes emulate the content of Carcassi's famed 25 Etudes, yet in a more contemporary harmonic and rhythmic idiom. These pieces are also distinguished in that they are not only valuable as left and right-hand technical exercises- but also as valid, pleasurable concert repertoire. The first ten etudes 11-20 focus on the use of the a finger in combination with i and m. Etudes 4,7,11,13,15, and 17 also concentrate on left-hand slurs. The final five etudes were composed as - and intended to be performed- as a set with each piece dedicated to a particular Latin American composer.