VRML is a continually-changing technology. Presumably since you're here, you think VRML is a cool and powerful new media. But in order to exploit that media, you need the best tools and the most powerful environment.
Sony's VRML 2.0 browser, Community Place (CP) provides that environment. VRML 2.0 compliance, complete Java support, and multi-user aspects make this the most powerful VRML browser available. However, to exploit this power you need to learn how to develop for CP, and that's what these tutorials are designed to deliver.
Anyone who is interested in 3D graphics, Internet development, and multi-user worlds should be interested in this technology. These tutorials are written for the VRML 2.0 content creator -- allowing you, the designer, to take advantage of CP. In short, these tutorials teach you how to create 3D multi-user powerful worlds on the web.
You should be familiar with VRML 2.0 -- these are not "basic" VRML 2.0 tutorials, although some common VRML 2.0 aspects are covered. You should also be familiar with the Javatm programming language. With these two skills you will be able to learn all of the information taught within. If you lack experience in these two fields, there are a number of excellent resources available on the web and in bookstores.
However, the most important skill you need is the ability to think creatively. If you can come up with an idea in your mind for a new world you'd like to create and you're willing to acquire the skills to carry it out, nothing is impossible!