How to back up audio book from iPhone to Mac?

"As you know, iPhone usually has update process. If I reset iPhone back to the factory, all the files in iPhone can be erased and cannot back. In case of this accident, I wanna back up my iPhone audio books to Mac, if so, I can restore the files with iTunes. But which tool can help me to easily back up audio books to Mac?

For your question, I think iMacsoft iPhone to Mac Transfer is to be what you want to, which is professional iPhone to Mac transfer software. It can help you fast back up audio books from iPhone to Mac. The great benefits you can learn are listed as follows:
1.Download, install and run the software
Download iMacsoft iPhone to Mac Transfer and run it. Connect your iPhone to Mac, the iPhone to Mac transfer will automatically recognize it and the device info will be shown as the picture below.

2. Export iPhone audio book to Mac
1) Click the "Books" icon in iPhone list and all books files are displayed on the library panel.
2) Locate audio books files you wanna transfer in the "Books" library and check them.
3) Choose the "Export->Export to local" option on the "File" top-menu, or directly click the "Export checked files to local" button to export and select the target folder for saving iPhone audio books in the dialog box that appears, and press "Save" button and start to transfer audio books from iPhone to Mac.

Audio books are more and more popular with people, add audio books to iPhone or back up iPhone audio book on Mac you will usually confront with this transferring problem. And with iMacsoft iPhone to Mac Transfer software you can be a best master to transfer audio books between iPhone and Mac without any trouble.