Among various other activities, Centro de Derechos Humanos Yax'kin, AC Cerrajeria 13 Colonia Azteca, CP 015320 Mexico DF Phone: 5789-3246 yaxkin@prodigy.net.mx publishes short books on human rights issues in Mexico. They involve the role and nature of prisons there, the origins and history of the guerrilla movements and the dirty war of the 1970s and later. The group also publishes some works on political economy. They are the original publisher of David Cilia's book about life in a Mexican prison (English and Spanish). In addition, they've published the following in Spanish: La Redada del 4 de Abril, David Cilia Olmos (1992) Carpizo y la CNDH - La Otra Cara de la Guerra Sucia, David Cilia Olmos (February 2002) La Pobreza del Poder, por Tomas Smith (November 2002) El Asalto al Cuartel de Madera, Testimonio de un sobreviviente (January 2003)