@technoplato_twitter -- no great way to query book chapters. This data is often not asserted in our books (it used to be manually asserted by operators). Also, I don't believe chapter markers are indexed in the search engine.
On Open Library, you can use the book API per book to query for the Table of Contents if it is available -- see: https://openlibrary.org/dev/docs/api/books
table of contents
Senior Content Editoror
Hello friends. Did anything come of the GraphQL discussion? I have a little time available and I'm eager to start contributing. My neighbourhood is lacking a good English library and I want to write some software to make it easier for neighbours to open up their private bookshelves as lending libraries.
My idea is to use openlibrary as the database, via ISBN ids, and to have some PWA web UI for scanning then registering the book as part of the private library, or POSTing book metadata to openlibrary in case it's missing.