Everybody is talking about client-side development and the SharePoint Framework. But did you know that you can also use TypeScript, React, Office-UI-Fabric, and the modern web development toolchain to extend Office products with productivity-boosting Office Add-ins? You can build Add-ins for internal business use or market them through the Office Store and reach over a billion information workers around the world who use Office products every day. You can extend Word, Excel, PowerPoint, Outlook, and OneNote running inside Office 365 or natively on Windows and Apple Macintosh, with more platforms coming. In this talk, we will build solutions that give our Office users tools that can take advantage of the SharePoint, Office 365, and Microsoft Graph APIs, all integrated into the applications they use every day. Solve critical business problems for your organization and delight end users with minimal development effort.