Although much research in the 1960s and 1970s was devoted to cross-cultural issues such as expatriate employment, researchers moved away from doing cross-cultural research in order to direct their efforts toward the hot topics of the time. However, the past few decades have seen an exponential increase in the globalization of our economy, and this ever-increasing globalization has made the need for cross-cultural research salient once again. In the past decade alone, there has been an explosion of research examining the components and effectiveness of cross-cultural training (CCT) for expatriate preparation. Thus, the ultimate purpose of this literature review is to present the past 25 years of CCT research relevant to expatriate preparation by examining the following: the need for CCT research, the deficiencies in past research, typical training components, training delivery, theory pertaining to CCT, potential moderators of the relationship between CCT and expatriate performance, the effectiveness of CCT in enhancing expatriate performance, suggestions for future research, and strategies for improving CCT implementation and research. After reviewing the past 25 years of CCT research, it is evident that CCT is effective in facilitating success on expatriate assignments. However, additional empirical research is needed on moderators, expatriate selection, training program supplements, theoretical frameworks, methodological challenges, and the customization of CCT to assignment objectives.