What is the best book on international human resources?

 There are many great books on international human resources, but one of the most highly recommended books is "Global HR Competencies: Mastering Competitive Value from the Outside-In" by Harold Messmer Jr. and Ron Ruggless. This book provides a comprehensive overview of the competencies needed to be successful in managing human resources on a global scale.

The book covers a wide range of topics, including cross-cultural communication, talent management, compensation and benefits, global diversity and inclusion, and performance management. It also includes case studies and practical examples to help readers understand how to apply the concepts in real-world situations.

Other recommended books on international human resources include "Global HR: A Business Partnering Approach" by Chris Brewster and Paul Sparrow, and "The Routledge Companion to International Human Resource Management" edited by David G. Collings, Geoffrey T. Wood, and Paula M. Caligiuri.