Here's an image that's 800 pixels wide by 600 pixels high. This is a good size for ToL master images. We scale down large images for display on ToL pages, and people have the opportunity to view the large master image by clicking on the thumbnail in image captions. Of course, we also accept images that are larger or smaller than this one. Frog image by Jane M. Rohling, courtesy U. S. Fish and Wildlife Service.