Manipulation is viewed in a negative light in society, but if used correctly, like advertising, it can be very effective. Although Iago is seen as Othello's right-hand man, he uses connivance and manipulation to seek revenge, shaping every strange event and occurrence according to his own cowardly plans. Iago enters Othello's mind and uses his jealousy and persecution as a Moor against him. He controls Rodrigo and ultimately destroys his reputation and influences Cassio when he is depressed. Iago finds ways to manipulate several characters in Shakespeare's play Othello, using their flaws—jealousy, control, and pride—to obtain his wants and desires. Shakespeare's most evil character might arguably be Iago. Othello has many positive traits, including being a great leader and loyal. . He also has a negative trait which ultimately leads to his death; jealousy. Iago provokes deep and strong emotions in Othello, jealousy being the strongest. Jealousy is a nasty little emotion. It causes people to do terrible things because once it is on a person's conscience, it stays for a while. Due to these effects, jealousy can affect some of the strongest people like Othello. The love between Desdemona and Othello was portrayed so high and pure and filled with religious words and expressions that only added to the strength and sacredness of their love. Othello has such a strong spirit, but the jealousy caused by Iago's manipulation impacts him negatively. Iago convinces Othello that Desdemona is cheating on him with his friend Cassio. When Othello asks Iago for proof of Desdemona's deception, Iago describes scenes and events in which Othello has reason to be jealous. In Act III, Scene I, Iago describes to Othello, Desdemona and Cassio the relationship imagined by Othello, Desdemona and Cassio: "It is impossible for you to see that / were they as beautiful as goats, as warm as monkeys , as salty as proud wolves and as crude fools. like ignorance intoxicates. These images implanted themselves in Othello's mind and haunted him until he did something. These images led Othello to believe that Desdemona truly loved him. Through his suggestion to Cassio, Iago can now be certain that Cassio will beg Desdemona to petition Othello for him. Cassio implores Desdemona and she responds: “Rest assured, good Cassio, I will do all I can in your name” (Act III, Scene III). Iago manages to obtain the handkerchief that Othello gave to Desdemona which had designs of Bianca's strawberries on it. He then tells Othello to ask for the handkerchief and if she does not produce it, then she must cheat on him. Iago also manipulates Emilia's unworthy devotion. We learn at the end of the play that Iago “begged me to steal him” from Emilia. Much like Desdemona's good nature, Iago exploits his own wife for malicious revenge. The handkerchief was the straw that broke the camel's back