Hierarchy classification:

1. top of the aat hierarchies
2. Agents Facet
3. People (hierarchy name)
4. people (agents)
5. [people by activity]
6. advisors

Anotations

Scope note:

People called on for professional advice or services regarding matters in the field of their special knowledge or training, usually for specific projects or problems. For persons who give advice either professionally or nonprofessionally, usually on an ongoing basis, use "advisors."