- In the Library, tap Discover.
- Tap one of the topic chips under the search field, or type a topic like “books about grief” or “novels like Piranesi”.
- Short searches find titles and authors first. Tap Books about “…” under the results to search that as a topic.
Searching by topic uses Cloud suggestions. With it off, the chips go away, the search finds titles and authors, and a note shows where to turn it on.
In Pemberley: Library → Discover