Any good literature to understand the American health care system?

Hello guys, I was wondering if anyone knew of any good literature that could give a reader an understanding of the American healthcare system? Perhaps literature that gives an overview, problems with the system, the future of the system, etc. I have searched the forums and noticed that most of the threads were started in the early 2000's and was hoping someone could provide more recent material. Thank you all!
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums