To all the IMer's out there, I am heading in your direction--well career wise, I mean. I just started my medicine rotation and want to know if there are books you guys can recommend for bulking up on differential diagnoses and that type of thing. Also are there must have books that you recommend for Internal Medicine???? Finally, I have to take a shelf exam in Medicine and I was hoping to get your input on how to prepare for the test and what I can read/review to help out on that front. Please forgive the barrage of questions, but I am really hoping to make this rotation count and I would appreciate any and all of your help.