Before you can go off and download SketchUp, you have to choose the type of work you are going to do with it. The following three options are available:
The following screenshot shows the options that you can select as per your requirement when you go on to http://www.sketchup.com/download:
Every download also includes LayOut and Style Builder, but these will stop working after a trial period of 8 hours, unless you buy and register a license. In these 8 hours, you can explore if the features it offers are really what you are looking for and decide if SketchUp is the right tool for you. Since you are reading this book, you obviously have made the right decision. A word of warning: SketchUp Pro will stop working altogether after...