This document discusses a study that analyzed six advertisements using methods of critical discourse analysis. The study aimed to investigate the intentions and techniques used by companies to influence consumers. Norman Fairclough's three-dimensional model and Kress and van Leeuwen's grammar of visual design were used to analyze how power and ideology are expressed in advertisements. The results showed that private producers try to give power to viewers to persuade them to buy products, while government producers try to show their own power. Overall, advertisements generally use power and ideology to change behaviors and thoughts.