Health care/big pharma primer?

Hello all, I work in a group outside of our large cap portfolio and have volunteered to help out with some health care research starting with big pharma. The problem is that we don’t have a lead analyst covering the sector to groom me. I have tried to find a primer for the HC sector or pharma industry to no avail. Any suggestions would be greatly appreciated.

if we can get a primer in any of the sectors that will be great. I have been given some tremendous resources already but any additions would be greatly appreciated. I personally recommend Canadian Securities Analysis Vol1 & 2. Though it is outdated, i think a lot of it is still relevant.

Industry reviews will also be thoroughly welcomed with open arms.