Video Tutorials is perhaps the best way to learn SketchUp, You can view them directly through the Help Menu: Menu Access: ( Help > View Tutorials ).
The following information helps you learn SketchUp more effectively. It was designed to offer the spontaneity of hand drawing with the speed and flexibility of digital media. SketchUp is a simple, powerful tool for creating, viewing, and modifying 3D ideas quickly and easily.
Tutorial 4 - SketchUp / Massing and Terrain
