This document provides an overview of auditing fundamentals and concepts. It begins with definitions of an audit as an independent examination of financial statements to express an opinion on whether they are fairly presented. Audits are needed because managers' reports to owners may contain errors, fraud, misleading information, or fail to comply with regulations. Modern companies are also large and complex, necessitating independent examination of their financial statements. The document then outlines topics that will be covered, including the auditor's report, objectives of audits, audit evidence, testing different accounting systems, and audit planning.