Revit, a type of Building Information Modeling or "BIM" software, is used widely in the U. S. to provide "real-life" information to clients, as well as a way for contractors to eliminate problems before they arise with a way to track costs. With an installed base of about 300, 000 users and growing, it is rapidly becoming the industry standard for architects, mechanical and electrical engineers, plumbers, and HVAC installers. | Autodesk Revit Basics Training Manual by Brian W. Clayton, Paperback | Indigo Chapters