there are many good heme books on the market and i have a lot of them. i believe many of them are redundant. however there are not many good heme books on flow. this book is not based on diseases types but on flow patterns. it gives readers a bird's eye view on how to approach a heme case. I am going to do a heme fellowship soon. retrospectively if you ask me to buy just two heme books, this book would be one of them. the only drawback is that the figures are far away from the text. for example the figures may be on page 50 but the text is on page 30. it wastes tons of time to flip back and forth to read every figure.