Here is an authoritative reference work that makes biographies of prominent Mexican national politicians from the period 1884–1934 available in English. Like the author's biographical directory for the years 1935–2009, it draws on many years of research in Mexico and the United States and seeks not only to provide accurate biographical information about each entry but also, where possible and appropriate, to connect these politicians to more recent leadership generations. Thus, Mexican Political Biographies, 1884-1934 not only is a useful historical source but also provides additional information on the family backgrounds of many contemporary figures.

The work includes those figures who have held specific posts at the national level or who have served as state governors. Each biographical entry contains the following information: date of birth, birthplace, education, elective political office, political party positions, appointive governmental posts at all levels, group activities, nongovernmental positions and professions, relatives, mentors and important friends, military experience, unusual career activities, and published biographical sources.

Another unique feature of the directory is appendixes with complete lists of the names and dates of cabinet members, supreme court justices, senators, deputies, selected ambassadors, and party leaders.

This fourth edition of Roderic Camp's highly respected Mexican Political Biographies is an updated comprehensive biographical directory of leading state and national politicians in Mexico, covering the years 1935–2009. The original edition, published in 1976, was the first and only comprehensive biographical work on contemporary political figures in any language and served as the prototype for the Mexican government's brief foray into its own official biographical directory. The Mexican Supreme Court has cited every biography of justices in the third edition as the basis of its biographies in the late 1980s.

With updates of the existing biographies and appendices, plus almost 1,000 additional biographies, this fourth edition now features close to 3,000 entries and serves as a unique resource list of the chronological occupants of all leading national political posts. The need for such information has become even more pronounced since Mexico's political transformation from a semi-authoritarian to a democratic model.

This latest edition allows readers access to information about Mexican politicians into the new century, and like its earlier versions, will be a valuable tool for government officials, journalists, historians, social scientists, the business community, and students.

Finally, it includes a detailed bibliographic essay that identifies and explains the significance of biographical sources and has been enhanced by numerous up-to-date Internet sources. An added convenience is an accompanying CD that allows readers to search the biographies and appendices, enhancing the longevity, usefulness, and uniqueness of this edition.