Sometimes these working relationships are temporary or sporadic. Only list those galleries whose working relationships with you are current. Many artists go their entire career without representation so it would not need to be listed. The major distinction is one of duration. This heading includes visits to universities where you are scheduled to conduct seminars, workshops, lectures, etc., over a period of several days.
Most universities require a certain amount of service within the university and local community.
This can be in the form of committee work, serving on a board, consulting for a public art project, assisting with a local art event, etc. It his highly desirable to list your technical skills somewhere in your cover letter, cv, or both. You might indicate the types of tools, machines, presses, computer technologies, processes, etc., that you know well enough to teach. It is important to list the professional organizations to which you belong at the national, regional, and local levels. You may have the opportunity to select work for an exhibition that does not involve a blind jurying process.