John of Salisbury (c.1115-1180) was the foremost political theorist of his age. He was trained in scholastic theology and philosophy at Paris, and his writings are invaluable for summarising many of the metaphysical speculations of his time. The Policraticus is his main work, and is regarded as the first complete work of political theory to be written in the Latin Middle Ages. Cary Nederman's 1991 edition and translation is primarily aimed at undergraduate...