Originally Posted by Mattee
It's just the way the law is written. It is completely legal to buy/sell used books and patterns.
Yup - it's legal. Bellow from Wikipedia. (and BTW for our overseas friends - Wiki mentioned that the EU does NOT have a "first sale doctrine" law).
"The first-sale doctrine is a limitation on copyright that was recognized by the Supreme Court of the United States in 1908 (see Bobbs-Merrill Co. v. Straus) and subsequently codified in the Copyright Act of 1976, 17 U.S.C. § 109. The doctrine allows the purchaser to transfer (i.e., sell, lend or give away) a particular lawfully made copy of the copyrighted work without permission once it has been obtained. This means that the copyright holder's rights to control the change of ownership of a particular copy ends once ownership of that copy has passed to someone else, as long as the copy itself is not an infringing copy. This doctrine is also referred to as the "right of first sale," "first sale rule," or "exhaustion rule."
I'm more comfortable with the whole concept now.
My suggestion to the original poster (getting back to the subject) is if your uncomfortable with it tell her exactly how you feel. Keep in mind that you are receiving a service for sharing the work. Is she a friend that infringes on your good-will often? If so, I too might be reluctant, and instead opt to do the copying at home. If not, I would share on the basis that the service she is offering is worth half the price of the pattern.