Archivists and special collections librarians have struggled for a long time with how to show patrons what we have in our holdings. Collections have been made accessible through container lists, finding aids, and collection and content management systems such as ArchivesSpace, Islandora, and CONTENTdm. Each of these documents and systems also has its own learning curve and different functions, but even then the scale of some topics in collections or the connectedness between collections is not always apparent.
This article showcases two projects the author has worked on to assist in creating data visualizations in a library/archives context. The GLAMViz Project an collection visualization tool that collects and displays subject headings via an API and using topic modeling, a text analysis method, to discover new topics and show connectedness in an archival collection.