Primary Surgery is a two volume practical handbook for surgeons working in low-resource environments, without much back-up, and even without specialist training. It is unique in its practical breadth, as it explains not only what to do, appropriate to the particular situation, but also what NOT to do, and furthermore to explain what to do if things go wrong. Many generations of doctors in remote circumstances have this book in their theatres and consulting rooms, and found it invaluable, and more help than many other more substantative texts. Volume One (Non-Trauma) has been recently re-edited and is available gratis online. It has been downloaded many hundreds of thousands of times. Volume Two (Trauma) is in the course of being re-edited, and will be available end 2020.