This document provides an introduction to Microsoft Teams, highlighting its key features for increasing productivity and collaboration. It describes Teams as a chat-centered workspace in Office 365 that allows organizing conversations into teams and channels. It outlines features like threaded conversations, @mentions, reactions, and private/group chats. It also summarizes how Teams integrates with Office 365 apps and enables meetings, calls, tabs, and connectors to other services. System requirements and licensing information are also provided.