This book is the first of its kind to offer a systematic examination of the whole law relating to financial collateral. It does so in two parts. First, it explains the law created by the Financial Collateral Arrangements (No 2) Regulations 2003, the Directive it implemented and related legislation. Second, it examines how financial collateral is used in practice in a range of different markets. It will be an essential reference point for all legal practitioners operating in financial markets.