My name is Ole Holthe, and I am the author of this introductory course in DirectX 11 programming. I have been working with DirectX for the last 10 years in many multimedia technologies. I have worked as a consultant for NRK, Telenor FoU and NextGenTel in Norway. I finished my PhD thesis on multimedia presentation for IP networks in 2010 at NTNU in Norway. This course provides an introduction to the DirectX 11 application programming interface (API). DirectX 11 is the main computer graphics API for making computer games on Windows Vista, 7, 8 and later versions. The course introduces core concepts and shows how to make example demonstration applications. We will use the following (free) tools: Microsoft Visual Studio 2010 Express, Microsoft DirectX SDK, nVidia Graphics SDK, Blender and nVidia FX Composer. We also look at nVidia OptiX. We also offer a free extra class at our web site, in the Geelix GameDevOS, if you wish to use Visual Studio 2012. This course uses the same presentation form that is common at universities/colleges for offering a highly efficient and qualitative educational experience. The DVD-ROM contains 14 classes, with source code examples. The overall goal of Geelix courses is to teach how to design and develop serious computer games and edutainment. The course has a short motivational part, in the introduction and at the end, that also encourages christian values in computer games.