This webinar will provide an introduction to the VisIT open source scientific visualization application. VisIT is used daily to analyze data from mesh-based simulations run on a wide range of platforms from laptops to peta-scale class supercomputers. VisIT provides a rich set of features that allow users to explore and analyze their data sets in a variety of ways. It also includes an extensive Python client interface which can be used to script analysis and movie generation. VisIT started at Lawrence Livermore National Laboratory in 2000 and has since grown into a vibrant open source project with developers at multiple national laboratories and universities. This talk will introduce VisIT with a brief overview of its features and will include information on how to use Intel's HPC Cluster Tools with VisIT.