This document provides an overview of PowerShell modules for administering Office 365. It discusses the Azure AD, Exchange Online, SharePoint Online, PnP, Skype for Business Online, and Teams PowerShell modules. For each module, it covers common tasks, connection methods, and authentication. It emphasizes that PowerShell is a useful tool for automation, bulk operations, custom reports, and reusability in Office 365 administration. Examples are provided and resources listed for learning more about PowerShell and each relevant module.