The sports agent has become a significant figure in contemporary sports business. Drawing on extensive empirical research into football around the world, this book explains what agents do, how their role has changed, why this is important for future sport business, and how understanding the role of the agent can help us understand labour markets and labour relations in an increasingly globalised sports industry. Focusing on the major European football leagues but also covering the MLS, smaller European leagues, South America, and the Far East, this book goes further than any other in illuminating an important but under-researched aspect of contemporary sport business.