This lesson provides an overview of engagement quality control and the process of using the work of others in an audit. Throughout the lesson, Nick Palazzolo will discuss the importance of maintaining quality control in every step of the audit process. He will also delve into scenarios where an auditor may need to rely on a specialist's expertise to ensure the audit is conducted correctly and comprehensively. By the end, viewers will have a better understanding of the key aspects of engagement quality control and how to effectively incorporate the work of others into an audit.