The second edition of this clear and readable text book on the basic principles of UK constitutional law has been thoroughly updated. John Alder provides his own introduction to the political and historical background that many students find obscure, making this an ideal first text book. A major focus os the book continues to be the different sources of our constitution and how they interrelate. Much is illuminated by comparisons with other countries, particularly the USA, and for this edition a new chapter reviews the relationship between EC and UK law. Fresh treatments of UK citizenship, Northern Ireland, civil liberties and judicial review strengthen John Alder's reputation for handling clearly topics which often seem controversial and difficult.