Crossing Borders: International Studies for the 21st Century by Harry I. Chernotsky (Author) delves into complex global issues from a multidisciplinary perspective, offering an accessible and engaging approach suitable for students. The third edition, published by CQ Press on February 6, 2018, with ISBN-13: 978-1506346922, spans 368 pages and explores the many borders that define the international system, including geography, politics, economics, sociology, and anthropology. Renowned for its comprehensive coverage, the book provides a framework for students to understand how these issues impact their daily lives and encourages them to become active global citizens through study abroad, internships, and career options. Michael Makara of the University of Central Missouri endorses it as an excellent textbook for International Studies courses.