This book presents a clear, carefully-analysed picture of the operation of equity today, across the common law world. Rather than revisit the abstract debate as to whether or not equity has 'fused' with the common law, it focuses on specific equitable principles and doctrines. Expert contributors step back and take a wider view of those doctrines, examining how they can best be understood today, and how they might develop in the future. This will prove invaluable to practitioners and courts (at first instance as well as appellate level), allowing them to navigate the constantly-growing mass of case law. Drawing on expertise from across the worlds of academia, practice and the bench, this seminal collection provides the most illuminating picture available of how equity operates.