When doing read operations with images, OAuth authentication is not required (Anonymous will work fine).

Images are the generic term for media files stored in albums.

Albums are containers for image files. For a given user you can enumerate all images in a given album:

List<AlbumImage> albumImages = await api.GetAlbumImages(album);

You can also access an image in an album directly by using it's ImageKey property:

AlbumImage albumImage = await api.GetAlbumImage(album, "ktwWSFX-0");

Images have a bunch of attributes such as Title, Caption, FileName, and Format. There are also a set of URIs for each Image that can provide additional metadata about the image such as ImageAlbum, ImageComments and ImageSizes.

The Images sample is checked into the samples directory of the project.

Be sure to specify your key and secret in app.config