Da Vinci’s The Last Supper is yet another key component of the book and is the source of many of Dan Brown’s claims. One of the major issues with all of Brown’s claims about the painting is that Brown almost assumes that the painting is at least close to its original state, with only some portions being changed. Therefore, if relying solely on the information provided in the book, the claims make sense and don’t generally contradict each other.
However, if the reader happens to have any basic knowledge of the painting, art history, preservation techniques, or conservation techniques, Brown’s claims start to lose a large amount of credibility. For instance, Brown briefly mentions in Chapter 55 that The Last Supper is a fresco. Frescoes are