After I updated my MacBook Pro system to Catalina , I used it to synchronize my epub books with my iPhone , But the cover page of each book can not be displayed in the apple book app for iOS 13.1.2.
iPhone XS
Today I found a method to resolve this issue .
First, on the MacBook ,create a folder in iCloud drive and copy all the epub ebooks into this folder .
Then , use iPhone tap “File” and find the folder which was created just now .
Open that folder and tap the epub files, the ebook will be opened by iBooks app . When the ebook was opened , the cover page can be displayed correctly on iPhone . At the same time , the ebook can be synchronized with MacBook iBook app , and the cover page can be displayed correctly too on the Mackbook.
It seems that epub ebooks can be synchronized correctly from iPhone to MacBook , but incorrect from MacBook to iPhone , maybe this is a bug of macOS Catalina.
Thanks, that sure is clunky, though. Seems like something that could be fixed in code in an upcoming update. Adding this here with the hopes that Apple's Books team notices and makes the improvement.
Along the same lines as @coverpage's solution, here is a way to add several books at the same time.
1) Make sure the books are deleted from iCloud "everwhere". (Either from your Mac or iPad)
2) On your Mac, select the books you wish to add from a file folder and send them to your iPad with Airdrop.
3) On the iPad, when the Airdrop selection appears, pick Books. Voilà, covers appear on both iPad and Mac.
You can then go back to book on your Mac to arrange them into Collections if you wish.
I just did it with a few dozen titles at once. As a workaround, it works.
Let's hope Apple gives us a real fix in the not too distant future...
This is appalling—and they haven't bothered to fix it in subsequent updates...
Cover page can not be displayed
