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In page Mural:

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Murals can be a relatively effective tool of social emancipation or achieving a political goal.[1] Murals have sometimes been created against the law, or have been commissioned by local bars and coffee shops. Often, the visual effects are an enticement to attract public attention to social issues. State-sponsored public art expressions, particularly murals, are often used by totalitarian regimes as a tool of propaganda. However, despite the propagandist character of that works, some of them still have an artistic value.[citation needed]