This guide is a great place to get started with AutoCAD Electrical toolset. As you can see from the illustration, the features are grouped together according to types of activity. In addition, these groups are arranged sequentially to follow a general workflow.
After you finish this guide, you can access the linked Help commands in each topic for more information, or you can return to the guide later to review specific topics. Also, try to find someone who will be able to answer your occasional questions. The product discussion groups (http://forums.autodesk.com/) and Autodesk blogs (http://blogs.autodesk.com/) are good resources.