The publication of the English translation of Uztáriz’s Theórica in 1751 signalled the beginning of the reception of this work in Britain. Over the next decades there were frequent, but often somewhat isolated, references to Uztáriz in works dealing with commercial, colonial or naval matters. However, by far the most extensive use was made of this Spanish treatise by Malachy Postlethwayt in his Universal Dictionary of Trade and Commerce. This chapter examines the selections Postlethwayt made and the ways in which he used these substantial borrowings in support of his own positions.