Before the internet, a physician's personal library was vital, sometimes being the only source of information available. The importance of Reuben Dimond Mussey's collection in contemporary times…and now—largely intact and one of the largest in existence—cannot be understated. It offers not only a full, in-depth view of medicine and surgery at the time but also reflects Dr. Mussey's forward–thinking ideas, worldly travels and important contributions to the community and the fields of surgery and medicine…