This section outlines the basic concepts that should be understood before moving on to more detailed subjects.  All of the core concepts and terminology of Relate are defined.  The topics included in this section are arranged progressively and build upon one another.  It is strongly suggested that a person new to Relate read each of them, in order.  If possible, try the suggested exercises to deepen your understanding and test your knowlege (plus, it is fun to create stuff and explore).