Typically, copyright of a work vests initially with the author of the work. As copyright owner, an author may transfer rights to a publisher by copyright assignment, exclusive license, or nonexclusive license.16
73 A broadly worded exclusive license may provide much of the same rights to publishers as would a copyright transfer agreement. Thus, an owner of an exclusive assignment (through either copyright transfer or broadly worded exclusive license) may produce derivative works and sublicense specific rights to others. Some publishers permit authors to retain certain rights to their works, even when assigning copyright or granting an exclusive license (such as making copies for educational purposes, posting a copy on a personal or institutional website, or depositing a copy in an institutional or other repository to comply with research funding requirements). A nonexclusive license for publication permits a publisher certain rights to publish and disseminate work, but the copyright remains with the author, who retains control over access, use, and distribution....