Frenchfancy You can switch countries.
Download the application for your pc/iphone etc so that you can read ebooks.
It will then create a Kindle account for you.
Under the account parameters you can then change country to the UK even though you are in France. It will require a UK address - I've used one that I've sent things to in the past. If you do it too often 
it asks you rather snottily if you have moved recently! I suppose you could be living in Pas de Calais and commuting on the Eurostar every day....
Strangely, I was looking for a book recently , but could only find it on amazon.com and amazon.fr (in English).
I think it's a bit weird, too, seeing as there is supposed to be a single European market. It's just like all the stupid, to me, delivery restrictions which are really annoying eg B+D electric saw £35 vs ?75, but try finding someone who will deliver outside the UK, and it's really difficult.
Oldlady if you order books from the UK site, they are sourced from a Continental European country, and the invoice includes VAT, even though books are zero-rated in the UK. The final price is the same, just apportioned differently. It's just one of the penalties for being an English-speaker within the EU, but outside the UK>