Once you have identified the materials you want to use and if you have determined that copyright permission is required, you must identify the copyright holder and secure permission to use the work. A good explanation of the steps for securing permission for copyrighted works can be found on Columbia University’s Copyright Advisory Office website. Links to individual components of the permissions process follow.
The University of California provides a checklist of information to facilitate a permission request. A clear and concise sample permission request is included.