There are no guarantees, and I could be paying $80 in shipping to Europe, but I think I have world shipping configured. I had to download a USPS extension. The set up was not straightforward, but I think I have it ‘close’ to right.
Books can be shipped at the cheaper ‘media mail’ rate. So I tested shipping from Michigan to California; it was around $3.19. Going to Europe, however, came to $80 something — if I entered the nonconforming address correctly. And I’m not sure that media mail applies over there.
I need to do more testing, but I don’t have any paperbacks or hardcovers to ship anyway, quite yet.