The Visual Resources Association's Statement on the Fair Use of Images for Teaching, Research, and Study. The Statement describes six uses of copyrighted still images that the VRA believes fall within the U.S. doctrine of fair use. The six uses are:
1) preservation (storing images for repeated use in a teaching context and transferring images to new formats);
2) use of images for teaching purposes;
3) use of images (both large, high-resolution images and thumbnails) on course websites and in other online study materials;
4) adaptations of images for teaching and classroom work by students;
5) sharing images among educational and cultural institutions to facilitate teaching and study; and
6) reproduction of images in theses and dissertations.

Image providers participating in IAP have supplied publication-quality images and agreed to make them available free-of-charge for use in scholarly publications.

Yale has more than 250,000 images available through a collective catalog. The goal is to make high quality digital images of Yale's vast cultural heritage collections in the public domain openly and freely available.