This text serves as a comprehensive manual for the identification and clinical recognition of illnesses directly caused by workplace environments and hazardous exposures. Marcus Key, a recognized authority in occupational medicine, synthesizes clinical data and industrial hygiene principles to provide practitioners with a diagnostic framework. The book argues that early recognition of occupational etiology is critical for effective patient management and the prevention of further workplace morbidity.

Experts in the field of industrial medicine identify this work as a foundational reference for clinicians tasked with identifying work-related health issues. Readers frequently note the technical density of the prose, which is tailored specifically for medical professionals and safety officers.