While the object system is general enough to describe all standardized classes (including, for example, number, hash-table, and symbol), Figure 4–7 contains a list of classes that are especially relevant to understanding the object system.
| built-in-class | method-combination | standard-object |
| class | standard-class | structure-class |
| generic-function | standard-generic-function | structure-object |
| method | standard-method |
| Introduction to Classes | ||
| Defining Classes | ||
| Creating Instances of Classes | ||
| Inheritance | ||
| Determining the Class Precedence List | ||
| Redefining Classes | ||
| Integrating Types and Classes |