The document discusses internal auditing. It defines internal auditing as an independent, objective assurance function that aims to add value and improve an organization's operations by evaluating risk management and governance processes. It outlines the roles of internal auditing such as being objective in assessing controls and independent in reviewing operations. The history shows how the role has evolved from checking accounts to facilitating risk management. Internal auditing can assist external auditors in audit planning and has taken on more complex roles in recent years to address corporate uncertainty.