The Old Greek of Isaiah represents an intriguing and complex unity within the Septuagint. The present volume contains contributions reflecting a variety of issues pertaining to this version, and also offers perspectives for further research. The topics dealt with can be designated as follows: terminology and vocabulary, unity of the book, rhetorical figures, coherence on the level of a pericope, theology, and hermeneutics (fulfilment interpretation). The Greek version is of course compared with the supposed parent text in Hebrew, but several contributions also show a strong interest in the Greek text as it stands. As to the latter approach the following aspects play an important role: the immediate context (verse; pericope), style, the meaning and function of words and phrases, and related texts. In order to stimulate further research, the volume also offers a full bibliography on LXX Isaiah.