A transmittal document serves as a "packing slip" for a document or group of papers that is moved from one organization to another. The transmittal might be merely the first page of a lengthy document. But, more often than not, it is a distinct document file containing information about the papers transmitted. Typically, it includes the sender's address, recipient's address, identification of the papers being sent, and often a detailed description of what's contained therein. The term "transmittal" comes from the Latin word transmitere, meaning "to send back." As such, it is used when returning papers to their proper location after having been distributed to other offices within the sending organization. However, the usage of this term has expanded in recent years to include documents that are sent between organizations for various purposes. These purposes include renewing subscriptions to journals, mailing lists, etc. ; confirming receipt of papers; and requesting action on an application, grant proposal, or the like. Transmittals are usually included with larger groups of papers sent via postal service. Sometimes these are referred to as "mailers," especially if many different papers are involved. When sending papers by courier, the transmittal form is usually included with the papers sent.