Throughout Othello there are many themes. There are themes like love, revenge, and miscommunication. Jealousy is also a common theme in the play. Iago, Othello, Emilia, Roderigo, and Bianca, all show at least a little bit of jealousy in their characters. Jealously is the most common theme between characters, and the most obvious theme in the play.
Throughout the whole book Iago is jealous. His whole lot in the book was based on his jealousy in the beginning for Cassio. Iago is jealous of Cassio because Cassio got the promotion that Iago wanted, and thought was better qualified for. An example of his jealousy is Iago saying, "Three great ones of the city, in personal suit to make me his lieutenant, off capp'd to him, and by the faith of man I know my price, I am worth no worse a place (act 1 scene 1). Iago's jealousy grows throughout the book with each twist