can't find downloaded audio book on my iPhone 6

Hi alan,

The audiobook that you purchased from the iTunes Store can be found in the iBooks app on your iPhone 6. When you open the iBooks app, at the top center of the screen, you will see the current Collection. Tap on the current collection and you will see a list of options. Tap Audiobooks and you will see your purchase.

I've highlighted the iBooks / audiobooks section of the iPhone User Guide below for you:

http://help.apple.com/iphone/9/#/iphab219b91

Organize books

View books by title or by cover. Tap or .

How far along am I? On iPhone 6s and iPhone 6s Plus, press a book’s cover to view your stats and other info. If it’s an audiobook, you’ll see the listening time remaining.

View only audiobooks or PDFs. Tap the name of the current collection (at the top of the screen) then choose PDFs or Audiobooks.

Organize your books with collections. Tap Select, then select some books to add them to a collection. To edit or create collections, tap the name of the current collection (at the top of the screen). Some built-in collections, such as PDFs, can’t be renamed or deleted.

Rearrange books. While viewing books by cover, touch and hold a cover, then drag it to a new location. While viewing books by title, sort the list using the buttons at the top of the screen. The All Books collection is automatically arranged for you; switch to another collection if you want to manually arrange your books.

Search for a book. Pull down to reveal the Search field at the top of the screen. Searching looks for the title and the author’s name.

Listen to an audiobook

Open an audiobook. Audiobooks are identified by a on the cover. Tap the book you want to listen to. If you don’t see it in the library, swipe left or right to view other collections.

Skip farther forward or back. Touch and hold the arrows, or slide and hold the cover. To change the number of seconds that skipping moves, go to Settings > iBooks.

Speed it up, or slow it down. Tap the playback speed in the lower-right corner, then choose a different speed. 1x is normal speed, 0.75x is three-quarters speed, and so on.

Go to a chapter. Tap , then tap a chapter. Some books don’t define chapter markers.

Go to a specific time. Drag the playhead, located underneath the book cover. Where you started listening during this session is marked with a small circle on the timeline. Tap the mark to jump to that spot.

Set a sleep timer. Before starting playback, tap , then choose a duration until the audio automatically stops.

Happy Holidays To You and Yours!