The materials are mostly unpublished, and Renzo Piano comments on them with sketches made for this special publication. The story of the project evolves from the origins to the first conceptual ideas, revealing the hard research process through sketches, drawings, study and presentation models, but also scientific experiments on light, sound and materials, to finally arrive to the construction site, the architecture built and the space lived. Few brief comment captions and some phrases by Renzo Piano bring a deeper understanding of the project stages, extracted from the story of the architect's adventure. A text at the end of the book provides the reader with a "behind the scene" view, from the relationship with the curators and the client to the choice of the materials, to the research of the most suitable solution for that museum and the specific context in which it was build. A conception of the museum that starts from the work of art to arrive at the architectural project. A journey that takes the reader through time and space during its realisation.