Unable to change author name in an ebook on iPad

Solution 1:

After hours of frustration, I finally found a solution to my problem by doing the following:

  1. Open Finder.
  2. Click Go in the Finders menu and select Go to Folder.
  3. Type ~/Library/Caches in the window currently displayed and click Go.
  4. Locate the iBooks file and move it to trash.
  5. Airdrop the same ePub file to iPad.

Following these steps I was able to see the accurate and updated author name on my iPad.