This manual investigates the operational mechanics and command structures of Lotus 1-2-3, specifically focusing on releases 2.01 and 2.2. Authors Catherine Garrison and Mercedes A. McGowen provide a structured instructional framework designed to assist users in navigating the spreadsheet environment. The text utilizes a technical approach to explain data entry, formula construction, and the management of worksheet files within the specified software versions.

Experts and users of legacy software systems identify this manual as a practical resource for mastering the specific interface and command syntax of early spreadsheet applications. The text is noted for its direct, instructional tone, which serves as a foundational guide for those maintaining or studying historical computing environments.