This Festschrift is offered to W.A.M. Beuken on the occasion of his sixty-fifth birthday and his retirement as Professor of Old Testament Studies at the Faculty of Theology of the Katholieke Universiteit Leuven. Wim Beuken has dedicated much of his scholarly career to the study of one Old Testament book, the Book of Isaiah. It seemed natural, therefore, that the present volume and its editors should honour Beuken's scholarly achievements with a collection of essays devoted to the Book of Isaiah and related topics. The 28 contributions are presented under four section headings. The first section contains a series of thematically oriented studies on the Book of Isaiah as a whole. The second section focuses on the so-called Proto-Isaiah and includes contributions dealing with PI as a whole together with contributions which have concentrated on specific portions thereof. The third section includes a number of articles which address issues related to specific themes and pericopes in Deutero- and Trito-Isaiah. The fourth and final section turns its attention to questions regarding inter-textuality and the history of reception.