This book is about the management of human resources and employment relations within multinational companies (MNCs). Now in its third edition, the book has been revised and updated to take account of the rapidly changing context for international business as well as contemporary developments in human resource management practice. While covering broadly the same topics as previous editions, the book now has an expanded first section and a range of new contributors who are leading authorities in their fields. Our intention is to offer a research-informed textbook that will provide both a readable introduction to international HRM as well as a stimulus to further study for those who may wish to pursue their own research in this fascinating yet complex area. In this introductory section, we indicate the key analytical themes that run through the book and provide a brief overview of the content.