In some cases--specifically two very good first person accounts of strokes--books about a particular disease or disability can help other co-sufferers or their families. This would hardly be true of Mr. Kesten's diary which may have had some therapeutic function for the author but is of limited clinical interest to others, or reassurance. It is also full of irrelevant personal detail. At 38, he had an aneurysm in the aorta as large as a melon (Marfan's Syndrome) and left Israel to undergo an open heart operation under Dr. DeBakey who has had worldwide prominence. All the procedures, along with his own high gear emotionalizing, are described in detail down through a second operation almost a year later.. . . As for the prose, no coronary insufficiency--it's quite overwrought.