The term software visualization refers to the graphical display of characteristics and behaviour of all aspects of computer software. This volume presents and compares different experiences of software visualization both from fundamental and applied viewpoints. The book is divided into four parts, covering important aspects of software visualization. Part 1 covers a survey of some existing software visualization environments, how to make a software visualization system language independent, and automatic animation techniques. Part 2 presents the advances in graph drawing, which support efficient and aesthetically pleasing visualizations. Part 3 discusses visual programming and transformation for parallel processing and for distributed systems, and visualization of parallel programmes. Part 4 includes some applications of software visualization, ranging from the modelling of flowcharts to the support of object-oriented systems.