Clipart is a time honored tradition among graphic designers. It used to be published in books, but today clipart collections are published digitally.
WP Clipart is an attempt to make a useful clipart package of public domain images for use in word processors. It contains nearly 5,000 pieces of non-transparent PNG clip art, which is exactly what AbiWord prints and scales well. It has been optimized for use in all word processors (scaled down, midtones expanded for inkjet print quality, etc.) It is suitable for documents as well as Web graphics, but also has business application (credit cards, promo graphics) and educational uses (pictures of all US presidents, all country flags, all US states, sign language alphabet).