Books won't sync from MacBook Air to iPad

Please try to do this on your MacBook air : Click the apple icon on the up-left conner , select Preference - Apple ID - iCloud Drive, Click "Option" and then select "apple books" , click "finish".

Do the same operation on your iPad to active apple books on iCloud drive.

I wish I knew how to solve this as well. I have the exact same problem occurring between my iPad Air 2 running iOS 13.2 and my iMac running Catalina 10.15.1. I also don't backup books to iCloud, and the only files that sync now are PDFs. This happened even when I deleted Books from the iPad and reuploaded it. One of the only reasons I updated to Catalina was the profound problems I was having syncing my entire library all at one time to Books, and now this happens? I am growing more and more disappointed in Apple with each passing day, sigh.

Same problem, and turning on/off the iCloud Drive sync preference doesn't help, nor did deleting the books from my iPad then forcing a re-sync/download.. The books simply won't sync. Only difference in my case and the OP is that my books show up on my iPad, but won't open. When I click on the ... and select 'Download', the book never downloads. I bought a bunch of ebooks on Black Friday (not from Apple, but *.epub just the same), and no luck syncing them. Very annoying.

I have the same problem. I've got as far as DFU restoring my iPad and it didn't do any good.

I don't store my books on iCloud, only on my devices. Is there a "fix" for this type of situation?

I have the same problem.

Hi everyone,

I have the same problem.

Any idea how to solve this?