The document is a presentation about building Windows 8 applications with HTML5 and JavaScript. It discusses the basics of creating Metro style apps, using the WinJS library and controls for the user interface, and key aspects of the Windows 8 platform like app lifecycles, charms, and contracts. It aims to help developers understand what is needed to add to their HTML5 skills to create Windows 8 apps, both by migrating existing apps and building new ones for the platform. The presentation includes demos of Windows 8 app functionality.