This document discusses auditing procedures and internal control systems. It begins by acknowledging the author's teacher for providing guidance on the topic. It then defines audit procedures as the steps auditors take to evaluate a company's financial statements and determine if they accurately reflect the company's financial position. The document outlines different types of audit procedures like substantive and analytical procedures. It also discusses internal control systems, their objectives and features, as well as principles and types of internal controls. Advantages and disadvantages of internal controls are provided.