The document summarizes key aspects of digital reading wrappers, including their purpose, features, and gaps. Wrappers provide interfaces for interacting with documents and include eReaders, note-taking apps, annotation apps, and course management tools. The document discusses features like annotations, navigation, clipping, collaboration, and convenience features. It analyzes how wrappers can be improved by better integration, customization, open formats, and use of web technologies. Gaps across wrappers that could be addressed are also outlined.