My first contact with George Gerapetritis was many years ago, when I supervised his doctoral thesis at Oxford, which was a comparative study of proportionality. He came highly recommended by friends and colleagues from Greece, and their expectation of him was fully borne out by his performance at Oxford over the following 3 years. He produced an insightful comparative analysis of proportionality, which was subsequently published in book form as Proportionality in Administrative Law (Sakkoulas 1997). The doctoral thesis and subsequent book demonstrated his qualities as a lawyer and legal scholar. He was adept at analysis of primary legal materials, being equally at ease with case law and statutory material alike, able rapidly to discern salient similarities and differences. George was equally adept at standing back from the primary material and addressing the policy and normative issues that underpinned the subject of study. These features of his scholarship inform this book on Affirmative Action Policies and Judicial Review Worldwide. It is a work of considerable scholarship and insight, which tackles an area on which there has been significant writing and in relation to which commentators hold strong views. George Gerapetritis steers the reader confidently through this complex area, making clear the distinctive views in existing scholarship, while at the same time expressing his own considered judgment of the relevant material, whether in the form of primary law or secondary comment.