In the year of the centenary of the death of Luis Emilio Recabarren (1876-1924), we are pleased to make available to the national public the translation of the text Recabarren and the Labor Movement of Chile by the American historian S. Fanny Simon, a work regularly referred to in the historiographical production referring to Recabarren, but very rarely consulted directly. As can be appreciated in the light of the excellent introductory study by the young historian Alfonso Salgado, this work was the fruit of the first academic research carried out on the figure of the Chilean union and political leader of the beginning of the last century, a task that took its author more than a decade of contacts and work with Chilean people and sources until she came up with - around 1957 - a version that we consider definitive. The availability of the original in English, as well as the numerous valuable background information that informs us extensively of the vicissitudes experienced by Simon in his efforts to write and publish his work, are also due to the valuable research work carried out by the aforementioned A. Salgado. Undoubtedly, making this translation known now -efficiently done by Nicolás Pérez Ferretti- not only means rescuing a task that had been silent for decades, but also, at the same time, contributes to the construction of the bibliographical collection that, over time, has been generated on the life and performance of the outstanding personality of L. E. Recabarren.