This collection of over 30 Java applets is quite impressive, both in content and in presentation. Operated at a university in Belgium, Visualization of and Experimentation with Statistical Concepts (VESTAC) is the title of the project that developed these educational tools. The applets are very intricate, with many functions and graphical capabilities; they are therefore quite large and can take some time to download on a slow connection. The four main categories of material are basic concepts, statistical tests, regressions, and anova. Some of the applets have versions for both continuous and discrete distributions and analysis.