I don't know about the other books for amateur physicians, but the only medical books I have are the "Wilderness & Travel Medicine" handbooks by Eric A. Weiss that came with a couple AMK FAK's and the Wilderness First Responder" by Buck Tilton, MS, WEMT . IIRC this book was a textbook for the NOLS Wilderness First Responder course. I purchased mine after taking the NOLS Wilderness First Aid course. Fairly comprehensive and being a textbook it may be better than other medical books for the DIY EMT. That said, a good EMT course is a thing.