Image::Magick::Iterator adds iteration support to Image::Magick. This means that if you have a stream of concatenated images, you can access each image in the stream as an independent Image::Magick object. Iteration functionality is not present in Image::Magick itself as of version 5.56. Passing a stream of concatenated images would result in essentially a "stack" of images which would all be manipulated in parallel by any Image::Magick calls. Calls to Write() either output an animated series of image (a la animated GIFs), or the first image in the series. WWW: http://search.cpan.org/dist/Image-Magick-Iterator/