This portfolio provides a structured framework for supervisors to evaluate, document, and improve employee performance through standardized metrics and observational techniques. Lester R. Bittel, an established authority on management practices, utilizes his extensive background in industrial supervision to offer a practical toolkit for managers. The book argues that consistent performance tracking is the primary mechanism for maintaining organizational standards and fostering professional growth within a team.

Management professionals frequently cite this text as a practical, hands-on resource for supervisors needing to formalize their evaluation processes. Experts note that while the methodologies are rooted in traditional management theory, they remain highly applicable for those seeking to implement objective performance standards in a workplace environment.