This book is a reference for the programmer using the IBM PL/I compiler in these IBM products:
It is not a tutorial, but is designed for the reader who already has a knowledge of the PL/I language and who requires reference information needed to write a program for an IBM PL/I compiler. It contains guidance information and general-use programming interfaces.
Because this book is a reference manual, it is not intended to be read from front to back, and terms can be used before they are defined. Terms are highlighted where they are defined in the book, and definitions are found in the glossary.

Text set apart by the workstation opening and closing icons designates features which are supported only on PL/I workstation products (AIX and Windows).
