This book presents a comprehensive overview of fundamental issues and recent advances in graph data management. Its aim is to provide beginning researchers in the area of graph data management, or in fields that require graph data management, an overview of the latest developments in this area, both in applied and in fundamental subdomains. The topics covered range from a general introduction to graph data management, to more specialized topics like graph visualization, flexible queries of graph data, parallel processing, and benchmarking. The book will help researchers put their work in perspective and show them which types of tools, techniques and technologies are available, which ones could best suit their needs, and where there are still open issues and future research directions. The chapters are contributed by leading experts in the relevant areas, presenting a coherent overview of the state of the art in the field. Readers should have a basic knowledge of data management techniques as they are taught in computer science MSc programs.

Graph data modeling and querying arises in many practical application domains such as social and biological networks where the primary focus is on concepts and their relationships and the rich patterns in these complex webs of interconnectivity. In this book, we present a concise unified view on the basic challenges which arise over the complete life cycle of formulating and processing queries on graph databases. To that purpose, we present all major concepts relevant to this life cycle, formulated in terms of a common and unifying ground: the property graph data model-the pre-dominant data model adopted by modern graph database systems. We aim especially to give a coherent and in-depth perspective on current graph querying and an outlook for future developments. Our presentation is self-contained, covering the relevant topics from: graph data models, graph query languages and graph query specification, graph constraints, and graph query processing. We conclude by indicating major open research challenges towards the next generation of graph data management systems.

This book constitutes selected papers presented at the 5th International Workshop on Software Foundations for Data Interoperability, SFDI 2021, held in Copenhagen, Denmark, in August 2021. The 4 full papers and one short paper were thorougly reviewed and selected from 8 submissions. They present discussions in research and development in software foundations for data interoperability as well as the applications in real-world systems such as data markets.

A beautifully produced celebration of bookbinding, its design and history. The average reader may not pay them any mind, but to those steeped in book history and collecting, bookbindings are simultaneously art and conveyors of provenance and backstory They often give expression to a book’s contents and always are delightfully tactile—all but the most pedestrian of them have a story to tell. The importance of historic and fine bindings to the founders of the Grolier Club is evidenced by their establishment in 1895 of the Club Bindery, as well as by the more than thirty-five exhibitions of bookbindings that have been held at the club. Ranging from early incunabula to newly produced books from the present day, the Grolier Club collection boasts some of the finest bookbindings in the world. This meticulously researched and beautifully illustrated tome highlights the milestones among European and American bindings from that collection. It’s a delight for the eye as much as an important scholarly work for the sophisticated bibliophile.