are the highlights I make in an ibook stored in the cloud backup so that if I have to restore ibooks to my ipad the restored book will have it's highlights?

Hi DRJibo,

If you are interested in syncing iBooks via iCloud, you may find the following articles helpful:

If you start reading a book on one device, you can pick up right where you left off on another device. Collections, highlights, notes and bookmarks sync across all your devices.

iBooks: How to sync iBooks between devices

http://support.apple.com/kb/HT5826

For iCloud backups specifically, you may find this article useful:

iCloud: iCloud storage and backup overview

http://support.apple.com/kb/PH12519

Regards,

- Brenden