How can I extract "my Books" library from Read2Go on IOS to my Mac?

macOS and Mac Apps

I have a large library of books downloaded from within Read2Go on my iPhone. I'm looking for a way to extract the entire collection to my Mac. I haven't had any luck with Imazing, as I've only been able to back-up the app and not the daisy books. I could be doing something incorrectly.

I wanted to put this question out to AV users that might have some experience transferring the book collections from their Iphone to their Mac. I am aware of one's ability to download from bookshare one-at-a-time using their account's download history. However, this is subject to the usual download caps and I'd like to be able to just download the existing file collection from my phone without impacting this month's tally.

I've been looking for some good step-by-step instructions.

Any help will be greatly appreciated.