I use the US Audible site but I’m assuming you too have an Audible app for your phone. Download the app and sign in to your account. It will show the books in your Audible library (after it syncs). Just select whichever ones you want to download to your phone. (I only keep my current listens on my phone but they still show in my library.)I bought the from Audible.co.uk.
There's no reason to get them into iBooks, just listen with the Audible app.
Of course, I know that you are right, but why is it that, given that every single one of my audiobooks was bought from Audible, all of my audiobooks cannot be played in a single application ?
Of course, I know that you are right, but why is it that, given that every single one of my audiobooks was bought from Audible, all of my audiobooks cannot be played in a single application ?
OP bought them fro Audible, so that is what we're talking about, not audio books in general. Any book you buy on Audible is available on the "Cloud" tab in the app, and you can download them to your device to listen to them. There is no need to move them into iBooks or anywhere else. If you buy books from elsewhere, obviously you will need to download them from that vendor, and they will go into whatever app they use. In the old days Audible books could go into iTunes and show up in the Music/iTunes apps, but there's no need for that now.Apple sells audiobooks via iBooks and that sure is a very valid reason to have them there. I’m not sure what the Audible app does different, if you can also download them etc, but the ones I have bought over the years live in iBooks on my Mac and iPhone.
I suggest you give the Audible app a chance. It has a lot of useful features. I don’t generally listen with earphones (and when I do they are usually AirPods) but you will find your listening controls are accessible on your phone’s lockscreen. Very convenient.I am able to play all of my purchased audiobooks in Audible. I bought them long enough ago for me not to remember precisely the route by which they found their way on my old iPhone into iBooks. On my old iPhone, all of them were in iBooks. I should like all of them in iBooks on the new iPhone for 2 reasons. First of all, I do not understand why they are not there, and it always troubles me when there is an unexplained departure of this kind. Secondly, and this is the more important reason, iPhone seems to me to work much more smoothly with headphones than does Audible. Suppose that I have started an audiobook this morning, and want to resume listening to it now. If it is in iBooks, I click the switch on my headphones once to launch iBooks, wait for a minute or so, then click again to resume listening. If it is in Audible, the same procedure seems not always to work, and I need to launch Audible via the touch-screen, and similarly to use the touch-screen to resume listening. I have not used Audible until yesterday, so this may be merely due to my unfamiliarity, but, if it is a feature of the application, it is for me a serious drawback.
Try Bound AudioBook app https://itunes.apple.com/us/app/bound-cloud-audiobooks/id1041727137?mt=8