A good RT book

I've recently been reading a good RT book. I actually got a good mark (82%) in my Pathophysiology course last semester. Unfortunately, even with the good mark, I still felt that I didn't really know much about pathophysiology. A friend at school recommended a book by Terry DesJardins, called Clinical Manifestations and Assessment of Respiratory Disease. As I read throught that book, I'm finding that the pathophysiology, that I should know, is starting to be known.