The calculus of relations turned into an important conceptual and methodological tool in computer science. The methods presented in this book include questions of relational databases, applications to program specification, resource-conscious linear logic, semantic and refinement consideration, nonclassical logics for reasoning about programs, tabular methods in software construction, algorithm development, linguistic problems, followed by a comprehensive bibliography. The reader gets an overview of the wide-ranging applicability of relational methods in computer science." ... While this is a multi-authored volume, the authors have done an excellent job of making it read like a single-authored work ... The book can be viewed as a set of snapshots of a family of research and researchers at one point in time. If you are interested in relational problems, I can think of no better introduction ..." Computing Reviews.