Audiobooks in iTunes

I have an iPhone 6S running iOS 12.1.2 somewhere along the last few upgrades access to my audiobooks has been eliminated. There no longer is an screen icon for direct access to the purchased audiobooks. I just checked my iTunes account on my desktop and found all 30+ of the audio books I have purchased. and The audiobook purchase made last night from the iTunes Store is on the list and is downloadable but I donot want to download the book to my computer only to my phone. I find no way to access this list or download the audiobooks on the phone. I attempted access through the app store but found no access there either. How do I access audiobooks in the library, download and add an icon all on the iPhone?