One of the greatest of all English common lawyers, Lord Atkin, asked the question in Donoghue v. Stevenson, Who then in law is my neighbor?, which became the foundation of the whole modern law of negligence. His courageous dissent in the wartime detention case of Liversidge v. Anderson is now recognized as a historic stand on principle. This book contains absorbing accounts of the background to these two great cases, as well as an assessment of their significance in the legal history of this century. It is the only legal biography of its kind. Instead of taking the conventional narrative form it treats individually the principal themes of Lord Atkin's decisions and illuminates some lesser known aspects of his work including the critical series of Canadian constitutional appeals in 1936.