The following links provide access to more information about how to install Mathematica and learning how it works.
To help you get started and familiar, to one of Mathematicas most popular tutorials for new users, click on the "Hands-on Start to Mathematica" screencast series. Topics include creating notebooks and presentations, basic calculations, graphics and interactive models, data analysis and more.
When you are ready to delve deeper, the Wolfram Mathematica Center offers hundreds of videos and other learning resources to maximize your use of Mathematica for your particular area of interest. Click here to learn more.