The Course Catalog includes course descriptions, listed by academic department. Because these represent the typical course offerings for a department, not all courses are described in the Catalog. If you cannot find a course description, contact the academic department for more information.
Not all courses described in the Catalog are offered every term. Some may be offered only in the Spring, others only in the Fall, and some courses may not be offered for several years. In SPIRE, you can use the Catalog to see whether a course is available for a specific term.