Books not syncing properly from MacBook Pro to iPhone 17

I am having a problem with the Books app. I am on MacBook Pro 2024, running most current version of Tahoe. I have an iPhone 17 pro. I spent a long time reorganizing my books and naming them all the same - I did this on my Mac. However, this is not translating to the books app on my phone. I have iCloud turned on, everywhere, books app going to iCloud 100%. I have quit the app, restarted devices several times. I have connected my phone directly to MacBook with a proper Apple cable and synced it through finder three times now. But still I just can’t get it to be the same. Any thoughts?!? I’m going crazy. lol. Thanks!