The document discusses a demo of the data aggregation lab by Nuno Freire during the IIIF community call in October 2018. It includes information on data profiling reports, schema.org metadata, and future work on a tool called PublishMyIIIF (PUMI) designed to enhance the discoverability of digital cultural heritage objects. Key functionalities of PUMI involve implementing W3C recommendations for interoperability with search engines and cultural heritage portals.