GoogleApps for business is what is used at CDP. It is used for sending emails, writing documents, sharing files, chatting and scheduling meetings. The document provides instructions on setting up a Gmail account using a CDP email address and signing in. It describes the Google home page and main features of Gmail like the inbox, settings menu for customizing the account like changing the password, profile photo and theme. The squares beside the profile picture allow accessing other Google apps like Drive, Docs, Sheets, Slides and Calendar.