This volume explores several notable themes related to political processes in Latin America and offers insightful historical perspectives to understand national, regional, and global issues in the continent from the beginning of the 20th century to the present day. The collected essays focus on Latin American politics such as: political cycles, left-wing political parties, nationalism, progressivism, crime and resistance, violence, authoritarianism, and relationships with the United States, Venezuela, Chile, Ecuador, Brazil, Colombia, and Paraguay. The perspectives of the chapters presented an attempt to seek lines of continuity by highlighting traditional interpretations of new scenarios and refusing to impose a traditional and uncritical linear historical narrative. The fundamental objective of the volume is to provide a rational and critical political-historical explanation of Latin America since the early 20th century with the purpose, among others, of deepening understanding of the present.