Another free service from local library...
Registered on it via my library's OneClickdigital portal (with library card number, email adress, name, postcode etc.) downloaded the OneClickdigital software to my computer and their app to my iPhone.
Selected, then 'borrowed' a book for 21 days. Click on app, select book, comes up with AirPlay symbol, click 'Marantz'... bingo!
I am already a big fan of (and frequent user of) my library service's free access to the OED online. Now this as well.
(Works on PCs, Macs and Androids too.)