Rules is a powerful web-ui based programming language that allows Drupal to take certain actions when an event occurs. Rules is a fundamental tool that sitebuilders will use when building a store, so it's important to have an up-close-and-personal mastery of rules.

We'll cover:

• The basics of rules: Event-Condition-Action
• Some simple rules for basic site activities
• Basic rules for Commerce, including conditional taxes.
• Commerce events, conditions, and actions you should know about

Since we'll be working with Drupal Commerce, this will all be with Rules 2 in Drupal 7, but the concepts are the same if you want to work with Rules in D6.