The Copyright Advisory Network (CAN) exists to help librarians understand copyright law and appreciate the important role that they can play in serving the public “to advance the progress of science and the useful arts.” They use the Network to respond to copyright questions posed by librarians, but perhaps—more importantly, to help librarians learn about copyright from a broader perspective, primarily its impact on information policy issues fundamental to our profession, including free expression, equitable access to information, censorship, and intellectual freedom.