This issue of Art & Design takes its theme from an important exhibition, proposed by the American conceptual artist Joseph Kosuth for the Camden Arts Centre in London. It brings together for the first time the work of three artists from three generations, Ad Reinhardt, Joseph Kosuth and Felix Gonzalez-Torres, demonstrating how each artist has adopted a critical stance and sought to re-define artistic traditions. Kosuth sees his work in terms of a bridge between that of Reinhardt and Gonzalez-Torres, and this publication illustrates and reflects on the notion of passage from one generation to another. This profile takes the exciting opportunity to publish many of the writings of Reinhardt and Kosuth, both artists to whom art criticism is 'an internal affair'. There are also new writings by Kosuth in response to Reinhardt; a conversation between Kosuth and Gonzalez-Torres, whose conceptual work addresses social and political issues; and an important new text by Terry Atkinson who considers the work of all three.