John Welchman, who is also the co-author of Please to the Table: The Russian Cookbook, is an art historian and travel writer whose articles have appeared in The New York Times, International Herald Tribune, The Village Voice, The Economist, and Artforum. He is a professor of art history at the University of California, San Diego. Helena Chavez Mac Gregor (Mexico City, 1979) Lives and works in Mexico City, Mexico. She has a PhD in Philosophy from the Universidad Nacional Autonoma de Mexico, UNAM, (National Autonomous University of Mexico) with a research on the relationship between Aesthetics and Politics. She did a MA at the Universidad Autonoma de Barcelona (Autonomous University of Barcelona) on Aesthetics and Contemporary Art Theory. She curate in collaboration with Cuauhtemoc Medina and Mariana Botey the exhibition Critical Fetishes, Residues of General Economy at the CA2M in Madrid (2010) and Museo de la Ciudad de Mexico (2011), she also co-curated the exhibition Spectographies, Memories and History at the MUAC (2010) and did advise work at the Mexican Pavilion at the 53rd International Art Exhibition, La Biennale di Venecia, 2009 with the exhibition of Teresa Margolles What Else Could We Talk About? Curate by Cuauhtemoc Medina. Helena is currently the Academic Curator of the MUAC, University Museum of Contemporary Art in Mexico City where she have develop the project Extended Campus a Critical Theory research program. Cuauhtemoc Medina. Art critic, curator and historian, holds a Ph.D. in History and Theory of Art from the University of Essex in Britain and a BA in History from the National Autonomous University of Mexico (UNAM).