These books can be bought around the globe! If you live in Australia the easiest way to get them is from Living Book Press.
They are print on demand books, selected titles will be available in both hardcover and paperback. The books which have been released can be purchased from both brick and mortar and online stores anywhere around the world!
If there's a price under the book that means it has been released. No price means I'm still working on it! An estimated release date is on the book's page.