Direct mail is like sending an advertisement directly to the person you want to reach. It may have many pages or it may be a postcard directing the customer to an event or a WWW site. A four page self mailer offering an Atlas of Rat Histopathology . The project included the four page direct mail, post cards, a cd and a flashbanner ad (see anitmation section) all featuring the rat, a molecular structure, screening and gel. The inside and outside spreads are shown below.