This book serves as a comprehensive catalog designed to assist Apple II users in identifying and selecting commercially available software for their systems. James Sadlier compiles a structured directory of programs, categorizing them by utility and technical requirements to aid early personal computer enthusiasts. The text functions as a resource guide for navigating the software landscape of the late 1970s and early 1980s, specifically focusing on compatibility with Integer BASIC and Applesoft BASIC environments.

Experts and historians of computing view this text as a valuable primary source for documenting the nascent software industry of the Apple II era. Readers frequently note the historical utility of the book in understanding the limitations and capabilities of early home computing environments.