Libby recently introduced a new filtering system on the Shelf and Timeline to streamline how you can sort and filter loans, holds, tags, and reading activity. It replaces the previous Preferences and Refine options and appears on your home screen, the search screen, lists, search results, and catalog guides.
To use the new filtering system, tap to sort and filter titles from your home screen (), the search screen (), lists, catalog guides, or search results. Example sort and filter options include format, audience, language, availability, popularity, and date added to the collection.
Note: You can now find the subjects filter from the new button.
For more information including how to pin a search please watch this brief tutorial.