This work on the history of tax law presents the papers delivered at the third Tax Law History Conference in 2006 organised by the Centre for Tax Law in the Law Faculty at Cambridge University. The papers deal with a range of topics, and though the breadth of topics is broad, it is not devoid of pattern. The majority of the papers deal with themes connected with continental Europe, law and empire, international law, and the problems of progression and the tax system. As a whole the papers, by leading tax scholars from all over the world, once again illustrate a wide variety and depth of learning on tax history, and highlight the important issues waiting to be investigated in this rapidly growing field of scholarship.