This section provides sample topics that involve contacts. Contacts represent people and businesses you want to communicate with. The Contacts folder is your e-mail address book and information storage for the contacts. A ContactItem object is an Outlook built-in object that represents unique contacts in a Contacts folder. The ContactItem object has over 100 properties, such as FirstName, CompanyName, and OfficeLocation, as well as custom properties if the built-in properties are not sufficient, that you can use to store information about each contact.