This document summarizes a workshop on authority files. It discusses how authority files can transform from library silos to a web of linked data by uniquely identifying entities like people, publications, organizations, and connecting them using identifiers. Four use cases are presented: developing a repository authority file, enhancing a journal authority file to track open access evolution, integrating existing authority files to make cultural data web compliant, and using authority files to enable new analyses and business intelligence from research information systems. The benefits of authority files for discovery, reliability, accountability, and efficiency are outlined. An example of crosswalking different authority files is also provided. The document concludes with an opinion poll on authority file topics.