This comprehensive book by Prof. Dr. Ahmed Helmy Gomaa delves into the critical field of examination and assurance services, framed within the International Standards on Quality Control. It provides a detailed exploration of the principles and practices essential for maintaining high-quality audit and assurance engagements. The text offers a thorough understanding of the requirements for establishing and maintaining a system of quality control for accounting firms, covering key areas such as leadership responsibilities, ethical requirements, client acceptance and continuance, human resources, engagement performance, and monitoring. It serves as an indispensable resource for practitioners, academics, and students in accounting and auditing.