This lesson will show you the basic tools for finding United Nations materials. It first gives an overview of how the United Nations is organized. It includes descriptions of each of the principal organs of the U.N. and an overview of the United Nations document numbering system. It then shows several online tools for United Nations research: the U.N.'s web site; the U.N. Documentation Centre; Official Document System; AccessUN; and UNBISNet. It ends with an introduction to a few web sites for very current information about the United Nations. You will need to set up a password to use CALI online. To set up a username and password, you will be asked to enter UC Law’s authorization code. You can get this code from any reference librarian or at the Circulation Desk.