Content management systems (CMS) within libraries are becoming more and more important as mechanisms for content and services to be provided in the digital environment. They allow for consistency in branding, look and feel, and the delivery of information; they also help to centralize input and maintenance of content and services by allowing multiple authors and creators to manage and edit their content without an intermediary, i.e. another staff person. In addition, CMS have the capability to produce test environments that assist libraries in exploring new tools, services, and presentation of content, without having to recreate these environments manually multiple times. Content Management Systems in Libraries documents case studies related to two types of CMS implementations: those that manage content on library websites and those that manage digital content. This book brings together a number of case studies on current CMS implementations, using both open source and proprietary systems, and reflects on the current state and future of CMS in libraries.