For those who are interested in the highly controversial world of art conservation/restoration, this book is a must. For the first time in English, we have an in-depth account of the 20-plus year intervention on Leonardo's masterpiece, the Last Supper. The project, applauded by some and decried by many, is documented here with hundreds of color illustrations and an essay by the chief conservator of the project. This is largely the Italians' point of view, which is highly controversial. But as the English-language editors say in their preface, it is important that all informed voices be heard in the debate as to the originality of Leonardo's hand and just what sort of intervention was appropriate to this situation.