This documentation is organized under the following headings:

Invoking and Terminating a Natural Session	How to start and end a Natural session.
Natural Main Menu	A description of the main menu. Information on the programming modes supported by Natural. An overview of the menus available from the main menu.
Using Natural Libraries	How to create a library and how to log on to a library and display its contents.
Commonly Used System Commands	An overview of the system commands used to create and modify source code, store and delete objects, and execute programs.
Miscellaneous Information	How to invoke help on error messages. Brief information on the Natural editors and on debugging. How to use asterisk notation.
Rules and Naming Conventions	Natural-specific rules and naming conventions for objects, libraries and user-defined variables.