The international shipping costs covers one copy of the book.
For all international orders, if you happen to get two or more books, please add $10.00 USD for each additional book. For instance, shipping for one book is $50.00, two books is $60.00, three books is $70.00, etc.
For Canada orders, the additional $10.00 extra still applies per extra book.
And again, shipping overseas is costly, which is unfortunate.