This is an English translation of Plato's dialogue concerning speculation on the nature of the physical world and human beings. An extensive introduction provides careful insights to the reading of the work, the nature of Platonic dialogue and the cultural background of the Timaeus. Appendices on music, astronomy and geometry further provide guidance to the central thoughts of the dialogue. The glossary provides cross references and discussion for key words in the dialogue, functioning as springboards into the various concepts and ideas that are central to this and other Platonic dialogues and are useful starting points for any classroom discussion or personal thought. Focus Philosophical Library translations are close to and are non-interpretative of the original text, with the notes and a glossary intending to provide the reader with some sense of the terms and the concepts as they were understood by Plato's immediate audience.