Culturally, as well as geographically, the Southwest lies between Missouri and Mexico, between the South and the West, and between the Gulf of Mexico and the Rocky Mountains. Consequently, the region has never been exclusively or irreversibly southern, western or exceptional, but has instead been made and remade by connecting links across these borders and by the conflict and cooperation of the varied people of the region, most of whom long maintained ties to their point of origin beyond those borders. Thus studying the Southwest provides a perfect laboratory for the exploration of themes relevant to the larger historical profession, including the construction of culture, the creation of identity, the causes of political behavior, the shaping of economic activity, the practice of comparative history, the nature of transnationalism, and the influence of race, gender, immigration, and ethnicity. In that sense, the region’s borders extend beyond geographic boundaries to include the culturally constructed divisions between groups in the Southwest. Conceived in this fashion the study of the Southwest and its Borders moves far beyond the traditional geographic, thematic, or chronological subfields of the profession, and it recently has led to several widely acclaimed publications. Prospective graduate students interested in exploring the history of the Southwest and its Borders are encouraged to send inquiries directly to any or all members of this cluster.