In case there are others, like Richard, who would like to read my books but don't want to buy from Amazon or the Book Depository, you can now get them in any digital format for your ereader direct from my blog:
http://helensmithblog.blogspot.com (look for the panel on the right hand side of the page).
After you buy the book using PayPal, I will send you an ebook in any format by email. If you don't see the format you want, let me know. I can send you just about any version of the book you're likely to need for your ereader.