Artstor has a number of tools that will help you create presentations for classes and conferences.
The best way to use Artstor images in presentations is to register for a user account, save your images into an image group, and then download them to PowerPoint. The resulting PowerPoint file will have one image per slide, with the image metadata in the notes field.
Each image will appear on its own slide, with the image data in the notes field below each slide. As long as you are connected to the Internet when in presentation mode, each image will also be hyperlinked to take you directly to view the original image on the Detail page, allowing you to zoom, pan and launch fullscreen.