This is an extraordinary book, physically attractive, lavishly illustrated, and well organized; to me as a book author, it is humbling! There are topic outlines for every diagnostic category that are quite useful. There are many, many references, and the citations use the Harvard system with the first author and the year of publication appearing in the text, the most efficient system for the reader. The emphasis is understandably on pathology and includes up-to-date genetic specifics where these are known. The clinical information is also very good and detailed, although anatomical information would be even better if supplemented with echocardiograms and magnetic resonance images, which with today’s technology can frequently provide better anatomical presentations. (They could be included in the author’s helpful brief case reports.) However, considering this topic begins with a deceased subject, that is a lot to ask of the author, who has written a book that covers an incredible breadth as it is. Also, as a nonpathologist, I would have appreciated a few more labels and/or arrows for orientation in some of the pathology figures.