Google Sketchup Training:
SketchUp is actually much easier to learn and use than Vectorworks IMO, so you should be able to achieve some skill with the software with little difficulty. ... Start your work in SketchUp
SketchUp is widely used for those in the design industry, namely interior designers and architects. Many designers prefer to use SketchUp since it's very user-friendly, especially compared to other applications like AutoCAD.
It is a computer-aided design (CAD) based computer application. It is a 3-D modeling based computer application. AutoCAD is used by civil engineers, architects, town planning companies, graphic designers etc. Sketchup is used by architects, interior designers, film-makers, 3D modelers etc.