There has been a long-standing discussion about the existence, scope and enforceability of an international lex mercatoria and this book can certainly be seen as a scholarly contribution to the debate. From the beginning, it becomes clear that the author (who is a Professor in Public International Law, International Transport Law and International Economic Law at the University of South Africa), bases his deliberations on a very personal understanding of an international lex mercatoria, which has been influenced by systematic concepts deriving mainly from the German legal system. In the preface, he refers to his book as the first work that “describes the international