The Visible Human Project is one of the groundbreaking initiatives that makes the National Library of Medicine so fascinating. Using donated cadavers, the Project has created "complete, anatomically detailed, three-dimensional representations" of male and female bodies, sectioned at one millimeter (male) and one-third millimeter (female) intervals. On the site, readers can find an extremely helpful FactSheet, link to several articles about the initiative, and view a number of revealing images and animations from the project. (Note: the animations require RealPlayer for Windows or QuickTime for Mac users.) There are also links to proceedings from several Visible Human Project Conferences, where readers may view overviews of presentations and view related images and movies.