core + bib (Bibliographic Extension): terms relating to books and bibliography.

audience

Canonical URL: http://schema.org/audience

Thing > Property > audience

An intended audience, i.e. a group for whom something was created.

Usage: Between 1000 and 10,000 domains
Values expected to be one of these types
Audience
Used on these types
CreativeWork
Event
LodgingBusiness
PlayAction
Product
Service
Supersedes
serviceAudience

Schema Version 3.3