Whenever someone makes a copy of a copyrighted work, that copy is either authorized by the copyright owner, permitted by some express provision of the copyright statute (such as the ephemeral copy provision in section 112 or the fair use provision in section 107), or infringing. That\u27s what we tell our colleagues and what we teach our students. But most of us don\u27t actually believe it, and this article argues that that understanding of the copyright law is wrong. I make this argument by examining the copyright law through the lens of personal use. Unlike many other jurisdictions, the United States has not troubled itself to nail down the lawfulness of personal copying and other personal uses. The statute prohibits infringement actions...