This document provides an overview of the first lecture for a course on assurance and risk management. It introduces assurance as a three-party relationship between a practitioner, intended users, and responsible party. Assurance engagements can provide either reasonable or limited assurance on a subject matter against stated criteria. Reasonable assurance allows a positive conclusion, while limited assurance allows a negative conclusion. Absolute assurance is not possible due to limitations of evidence and controls. The document also discusses the expectations gap between what auditors do and what others perceive, and provides learning objectives and assessment details for the course.