This well written, well researched book details the history of one of the world's most famous paintings.
Literally, all aspects appear to be covered: Leonardo's own biography, the political, economic and military context that led to the painting's production, the contents of the work based on Biblical sources, the actual making of the painting, how it has (partially) withstood the trials of time, etc.
The writing style is lively and, despite the amount of information conveyed, the book is of reasonable length and constantly interesting.
The only shortcoming is the lay-out which is hopelessly traditional with rough grained black and white photographs inserted in the main text and all colour photos grouped together in a few pages in the middle of the book. It turns out that no colour photo of the fresco is actually provided!
Nevertheless, this book is strongly recommended to all interested in Italy, art or the Renaissance.