The Simple Starter Kit gives you a bare-bones website that
introduces you to a set of well-defined conventions for building an
Umbraco website.
The Simple website is very basic in form and provided without
any design or functionality - unless you add a Skin, of course. By
installing the Simple Starter Kit, you'll begin with a minimal site
built on best practices. You'll also enjoy the benefits of speaking
the same "language" as the rest of the Umbraco community by using
common properties and naming conventions.
Now that you know what the Simple site is, it is time to get
started using Umbraco.