This book investigates the fundamental operations and practical applications of the VisiCalc spreadsheet software specifically within the environment of the TRS-80 Model III computer. Harry Anbarlian provides a structured instructional framework designed to transition users from basic data entry to complex financial modeling. By utilizing the specific hardware constraints and keyboard layout of the Model III, the author establishes a methodology for leveraging early electronic spreadsheet technology to automate business calculations.

Experts recognize this text as a period-specific manual that documents the early adoption of spreadsheet software in small business computing. Readers frequently note the technical clarity of the prose, which serves as a historical reference for the limitations and capabilities of 1980s-era microcomputing.