Abstract David Mamet is one of the greatest modern American playwrights whose works have dominated the stages during the Twentieth century. Glengarry Glen Ross is a great echo in the world of the businessmen in the United States. This study is very significant for other scholars because there is no research has been done on what this study deals with. This article is devoted to the analysis of David Mamet’s Glengarry Glen Ross based on Althusserian theory of ideology. This paper supplies and focuses on the different concepts of ideology like Ideological State Apparatus. This study also tries to examine the consequences of ideology upon the individuals and society. It scrutinizes how Ideology of the dominant class creates unethical and immoral American corrupted society in Mamet's Glengarry Glen Ross. The findings of this study show, the salesmens’ choices, preferences, wants and desires are the products of the ideological practices. These ideological practices represent the production of corrupted ideology in the real state in which American Dream activated. The findings also display, the salesman are subjects to the capitalism ideologies.

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