To select an image, click once on a thumbnail. The selected image will be framed in orange. To deselect an image, click again on a selected thumbnail. To clear all your selections choose the “Clear all selections” choice under the "Organize" tab in the top toolbar.
Double clicking on a thumbnail will open an enlarged view of the image in the Image Viewer. The Image Viewer provides you with tools with which you can zoom in on details, pan to different sections, and rotate the image 360 degrees. It also has tools for printing and saving images. You can use the viewer to proceed sequentially through a presentation as well.
The following page, from the ARTstor Help wiki, provides detailed explanations for using the various icons featured in the ARTstor Image Viewer:
N.B. If you're having trouble opening Offline Image Viewer presentations (.SHW files), please follow these directions: