The existing bibliography on one of the most celebrated buildings – afterwards – by international critics, the Sydney Opera House, is extensive and varied. A process full of vicissitudes, the technical innovations necessary to develop the roofs, and the political changes that took place during the construction of the building make it a complex mix of opinions, data and analyzes that are difficult to address due to their extension in time and in space. This article tries to facilitate the synthesis of the inescapable points to understand the echoes of the process, and a new look through two sources: news published periodically from The Sydney Morning Herald, and the Jørn Utzon’s very few textual references, contained in the two books published by the architect in the manner of Testimonies: Sydney National Opera House — Red Book, 1958; Yellow book, 1962.