The book "Quality Metrics" offers a comprehensive analysis of the norms and standards essential for software development. It highlights the importance of ISO/IEC standards, particularly ISO/IEC 9126, 14598, and 25000, and their application in ensuring quality in software projects. The authors, Ronald Christopher Elizalde López, Jimmy Rolando Molina Ríos, and Salviano Vicente Núñez Apolo, bring their expertise to guide readers through the complex requirements and metrics necessary for the successful implementation of software projects. This specialized book is aimed at professionals and students seeking a deeper understanding of quality metrics in software development. It serves as a valuable reference work that addresses both theoretical and practical aspects, thus making a significant contribution to quality assurance in the software industry.