The U.S. Supreme Court has ruled in a 6-3 opinion that “ first sale doctrine” applies to books purchased overseas.
The court decided that Supap Kirtsaeng did not violate copyright when he purchased textbooks overseas to sell to friends and families in the United States. Textbook publisher Wiley had sued Kirtsaeng for reselling these books.
You can read the complete Supreme Court decision at this PDF link. First sale doctrine applies to the sale of copyrighted goods, letting the buyer’s copy be “resold or otherwise redistributed without the copyright owner’s authorization.”