SWIGS is a system for creating hierarchically organized sets of thumbnail galleries. Multiple sizes for each image are produced automatically, and each image can be annotated with a relevant description, date, photo credit, etc. The image galleries (albums) have a tree structure, each album possibly containing pictures and/or additional albums. The album is made up of a set of webpages: a set of thumbnail pages for the images in the gallery, a text-only list of all the images in the album (with description if available), and a page listing all the sub-albums of the current album, with a description and sample image for each.