Books on Health Problems that Can Cause Health Problems

So here are my books for this semester. They are gigantic! Check it out. If I stack them all on top of each other they are 9 inches thick, and when I put them on the scale they weighed more that 25 lbs. I don't know for sure but I may have to buy more this semester still. I am trying to get by with the minimum number of books I have to buy. I guess that is what happens when you have to learn thousands of drugs inside and out.