"Almost no site seems complete these days without an image gallery, which displays thumbnails of many images in on a single main page. When you click on any image, you bring up a page with a larger version of the image. My favorite way to create image galleries is by using shalbum, an elegant shell script that uses ImageMagick to generate Web albums.
"ImageMagick is a suite of command-line tools for creating and manipulating bitmap images. It can be used to create simple graphics, complex image mosaics, and even animations..."