Book rights, and especially eBook rights, can be messy. UK publishers can’t just start selling books in the US, and vice versa. For most modern books by big authors, you’ll see the hardback and eBook versions being published at pretty much the same time around the world. For older books that were released before eBooks were a big deal, and for smaller authors with publishing deals, however, you’ll regularly find that the eBook version is available in some countries and not others.
…But not in the US one.
If you’re an American fan of Hume, this would be pretty annoying, since you can’t purchase books from the UK Kindle Store. I run into this issue every so often, but fortunately, there’s a workaround: it’s possible to change which Store your Kindle uses.
Hover over the Account and Lists dropdown and select Your Content and Devices.
Next, select Settings.
Then, under Country Settings, click Change.
Enter the address you want to use in the country you want to change to and click Update.