This book discusses programming languages for parallel architecture and describes the implementation of various paradigms to support different models of parallelism. It provides an overview of the most important parallel programming languages designed in the decade and introduces issues and concepts related to the development of parallel software. The text covers parallel languages currently used to develop parallel applications in many areas, from numerical to symbolic computing. In addition, it introduces new parallel programming languages that will be used to program parallel computers in the near future. The book contains a set of high-quality papers describing various paradigms that have been defined and implemented to support various models of parallelism. It first gives an overview of parallel programming paradigms and discusses the major properties of several languages. Papers describing these languages are then collected into six chapters and classified according to the paradigm used to express parallelism.