The third edition of this book is ideal for teachers of law who want a succinct but intellectually challenging overview of contract law for their students. Written by the same author team as the popular Understanding Law, it provides an accessible analysis of contract law whilst putting forward new ideas. This third edition follows the book's established style of interpreting judicial decision-making in contract cases by examining the pressure on judges to follow a traditional approach yet also meeting the reasonable expectations of both commercial and consumer contractors in the modern market-place. Recent developments in the field are examined, including Ruxley Electronics v. Forsyth, the Contracts (Rights of Third Parties) Act 1999, and the challenges presented by electronic commerce.