Spoken or visual representations of information, such as speeches, demonstrations, and slide shows, for the purpose of achieving favorable visibility and persuading an audience to believe or support the presentor's ideas, projects, or goals.
Based on DIWG Metadata subcommittee meeting, 11/5/2019.
Use AAT definition (from 'Note'): http://vocab.getty.edu/page/aat/300258677 :
Based on DIWG Metadata subcommittee meeting, 11/5/2019.