This book is really great for both undergraduate and postgraduate students, providing an overview of everything that currently falls under an umbrella of 'security studies'. Well written, clear structure and quality print make it an invaluable material for students.
I needed a simple text that encapsulated all of the ideas and concepts in ISS - this introduction seems to bridge the gap between global politics and strategy. the initial few chapters are particularly useful in explaining the contested views surrounding Security. Well structured, well written and not too many big 'ology' words!