This book investigates the core syntax, structural requirements, and operational commands necessary for effective COBOL programming. The authors, Ray Welland and R. Welland, provide a condensed reference manual designed to assist developers in navigating the complexities of legacy business systems. By focusing on the essential components of the language, the text serves as a quick-reference tool for maintaining and updating existing mainframe applications.

Experts identify this guide as a practical, high-density resource for programmers tasked with maintaining older business software. Readers frequently note that the concise format is ideal for quick lookups during active development sessions.