Book excerpt: John Hearne: Architect of the 1937 Constitution of Ireland is the first-ever biography of the ‘architect in chief and draftsman’ of the constitution. In the six-year period that it took to draft the constitution, John Hearne was involved at every stage alongside Éamon de Valera; his attitudes and concerns – especially with the protection of human rights in a period which saw the rise of dictatorships throughout Europe – governed the make-up of the fundamental law. This law still stands today and reverberates through every call for referendum or repeal. John Hearne is the biography of a man, later Irish Ambassador to Canada and the United States, who masterminded Irish policy, nationally and internationally, for decades; his essential role in the making of the constitution will result in a greater understanding and re-evaluation of one of its most defining and controversial documents.