Book excerpt: This book offers answers to essential questions about the border between the United States and Mexico and connected issues that are accessible to readers interested in immigration, border security, and U.S.-Mexico relations. Comprising seven chapters, The U.S.-Mexico Border: A Reference Handbook surveys the complex topic for students and readers. Chapter 1 discusses the political, social, and economic contexts in which the border came to exist. Chapter 2 discusses problems, controversies, and proposed solutions. Chapter 3 consists of original essays contributed by outside scholars, complementing the perspective and expertise of the author. Chapter 4 profiles major organizations and people who, as stakeholders in border politics, drive the agenda on the issue. Chapter 5 presents data and documents on the topic, giving readers the ability to analyze the facts. Chapter 6 provides additional resources that the reader may wish to consult, such as books, journal articles, and films. Chapter 7 provides a detailed chronology of important events, and the book closes with a useful glossary of key terms used throughout the book and a comprehensive subject index.