When teachers bring Stacey, a librarian at a Midwestern private university, their course materials to upload on the university’s e-reserves system, she always checks to make sure that the course material has not been uploaded before—or at least, not in the last three years. If it’s fresh material, and it’s only a small fraction of the original work, she’s pretty sure that uploading it for the students to study could be considered a “fair use.” If it has been uploaded before, she tries to license the material, or have the professor find a substitute that the professor hasn’t used before. She knows that at some universities, e-reserves policies are more liberal, but her institution can’t afford a legal challenge, so she likes to err on the conservative side. After all, you can’t be too careful.