Abstract: A single panel communication card whose principal function is social expression. The card comprises a card body having a front face, a back face, and no fold; multi-color graphic images of social expression imprinted on the front and back faces; and an exposed surface upon which identifying indicia may be applied. The exposed surface is divided into predetermined regions of specified light reflectance and fluorescence requirements. All colors and images used within these regions are designed to meet the appropriate light reflectance and fluorescence requirements. This enables the exposed surface to be read by light sensitive postal equipment; even when bright and dark colors are present. Prior to mailing the card, the sender signs his/her name, then applies the address and proper postage.