Any faculty member, graduate student or staff member with a valid Mason email account and a bio in the system can log into CHSSWeb and manage their own bio. People who are currently teaching classes can also edit the descriptions of those classes and upload syllabi.
If you have classes assigned to you for the current semester or an upcoming semester, you will see those classes under the "Classes" heading near the bottom of the form. You can edit the title, add a description, upload a syllabus, and upload a promotional image. The images below shows you an example of that portion of the form.
Here is how that course section would appear to the public.