What data are you storing? Name of author and name of book on a single line? Anything more? Anything else that could be useful?
I’m just wondering if maybe going the opposite way and rather than combining into a single list, have a draft for each book with the name, author, ISBN, rating, thoughts, etc. Make more of what you potentially have.
You could link them all to a draft for each author using wiki link notation and then review back links, as well as any author notes you might want to keep.
The following docs and topics might help give you better insight on how this could work.