Of the many comrades and collaborators of Ricardo Flores Magón, Librado Rivera was by far the closest. Their revolutionary partnership lasted twenty years, rivalling that of Durruti and Ascaso and only ended with Ricardo’s death in Leavenworth Prison murdered directly or indirectly by the U.S. authorities. Librado was a founding member of the Partido Liberal Mexicano and made fundamental and major contribution to its anarchist orientation. Despite this, though, Librado has been badly neglected on his own account. This may be in part due to his own natural modesty an reticence, as he always shunned the limelight while remaining at the same time in the forefront of the struggle, preferring to adopt the role of a seemingly ‘simple militant’. He was, in reality, far from this. As a tireless anarchist revolutionary and propagandist he spent more than thirty years fighting, as he would say, ‘in favour of all the oppressed and exploited of the earth’ in order to establish ‘a new society which would have as well as liberty, love and justice for all!