This bibliography is a comprehensive collection of the non-English-language labor and radical periodical publications of the United States and Canada, written for and by immigrants. It is intended to supplement existing studies of the role of individual ethnic groups in the North American working classes, by using a broad comparative approach that takes into account the cultures of origin, migration processes, and specific forms of acculturation in the United States and Canada. It represents the collective efforts of thirty scholars from many cultures, with widely varied experiences, styles of annotation, and scholarly traditions, and includes detailed annotations of all bibliographic entries, as well as title, place, and chronological indexes.