An art form popular in Japan whereby a pre-teen or teen female idol poses for clothed, semi-clothed, or nude pictures in various positions and costumes. The pictures are published in magazine form, called photobooks, featuring only this female model and no others. Gravure idols feature race queens
and pop idols who who to achieve celebrity by selling their images.
We don't have gravure idols in the US since girls here just post pictures on their own websites.