Research needs primary source documents. The supposedly unimportant, ephemeral materials used to advertise exhibitions, lectures, and new publications are often the only record of these events. Ephemera files, like those in the Arts of the Book Collection (AOB), part of the Arts Library at Yale, provide important information on activities and people that are currently exhibiting but not yet in the limelight. These files also document lesser known artists and exhibition spaces. AOB holds 14 linear feet and growing of materials that have been collected since the early 1980's on various contemporary artists and presses. This database represents a small sample of our ephemeral holdings for which we have received permission to post on the Internet.