Celia Hart's book is now available at www.Amazon.co.uk. The link here - http://tinyurl.com/j5w3q - should take you to the page where you can buy it. The good news is that you can buy from that British website no matter where you are.
However, the book is only at amazon.co.uk. It is not at their US, French or German websites, not yet anyway.
Our other distributors do not advertise our book on their websites right now. However, they all have copies of the book and will be very happy to sell it to you. You can write to them or telephone them to get your copy. It just takes them a little time to post the details of the book. Our French distributor might never list the book since they sell very few books in English.