Create audiobook that syncs through iCloud in iBooks.app?

[johannnn]

I have some audiobooks that are in a single mp3 file per book.

I would like to
1) convert the mp3 to audiobook format
2) add to iBooks.com
3) make it sync to iCloud so that I can play it on my iPhone and Apple Watch, and so it stays in iCloud within iBooks.app even though I replace my Mac/iPhone/Apple Watch.

Is this possible?

I remember doing this a few years ago, but now I dont have any audiobooks in iBooks anymore. So I'm wondering if I just "added it locally", because if it was really syncronized to iCloud I'd assume I could still view it.

Edit: I just downloaded a random m4b file and dragged it to iBooks.app. It is added to my library, but is not syncronized automatically to my phone or watch. I then dragged a PDF to iBooks, and it immediately showed up on my phone. What's up with audiobook syncing? Is it not through iCloud?

 

[goneeuro02]

I have two audiobooks that I did this with a year or two ago and now I cannot for the life of me figure out how I did it with a new audiobook. I tried changing the format and nothing. It's driving me crazy.

 

[cwinteMR]

Audiobooks sync is a bit inconsistent I found. I did get sync by connecting iPhone to Mac by cable and then selecting manual sync (either all or selected audiobooks). This is rather like iTunes /Music used to do for tracks. Then which track is current seems to sync, my audio book is in 100+ small chapters so rough is good-enough. I'm not sure how accurate point of play in longer files is sync'd.