Marcos Ramírez ERRE (b. 1961, Tijuana, Mexico) is a multidisciplinary artist whose work examines borders, migration, identity and the political and economic relationships between Mexico and the United States. He earned a law degree from the Universidad Autónoma de Baja California in 1982 and moved to the United States the following year, working in construction while developing his artistic practice. Deeply rooted in the Tijuana–San Diego border region, ERRE works across sculpture, installation, painting, photography and video, often responding directly to the social and political histories of particular places. His landmark Toy-an Horse (1997), a monumental two-headed Trojan horse installed at the San Ysidro border crossing for inSITE97, addressed the two nations’ uneasy but inescapable interdependence. ERRE has exhibited internationally, participating in the Whitney Biennial (2000), Havana Biennials, Moscow Biennale, California Biennial and SITE Santa Fe. Throughout his practice, ERRE uses the border as both physical reality and metaphor to explore power, citizenship, cultural difference and human relationships.