This book examines the notion of a law of obligations as a conceptual category in itself; and, in doing this, it presents the foundational material in a context that draws on some comparative and theoretical ideas while, at the same time, emphasising the special characteristics of the common law. The book is specifically designed to act as an introduction to the legal research skills of reasoning and method. It also looks at the foundations of civil liability in a way that emphasises the interrelationship of source materials, problem solving and conceptual analysis and justification.