The Supreme Court of the United States recently passed a judgment in the case Kirtsaeng v. John Wiley & Sons, Inc. (No. 11-697, decided 19 March 2013), ruling that the so-called first sale doctrine of U.S. copyright law is applicable also to copies of a work manufactured outside the U.S. The first sale doctrine enables the resale of copyrighted works without the consent of the copyright holder. The ambiguity therein stemmed from the wording of section 109(a) of the U.S. Copyright Law, which required that the copies of a work be “lawfully made under this title”.