This volume serves as the definitive cross-reference index for the early Macintosh technical documentation library. Apple Computer Inc. compiled this resource to assist developers in navigating the complex, multi-volume technical specifications required for software engineering on the Macintosh platform. By consolidating references from the first six volumes of the Inside Macintosh series and supplementary technical manuals, the book provides a centralized navigational tool for system architecture and API lookups.

Experts and developers of the era identified this as a necessary utility for managing the high volume of technical documentation produced by Apple. Readers frequently note the density of the index, which remains a foundational reference for historical Macintosh software development.