“Overcoming Inventoritis” by Peter Paul Roosen and Tatsuya Nakagawa is a little rough diamond of a book. Though it is very amateurishly produced and designed, and reads like a set of long, disorganized, conversational email notes, it is packed densely with interesting practitioner insights, strung together loosely to argue that “Inventoritis” (never explicitly defined, but roughly, ‘falling in love with your idea’) is an extraordinarily dumb thing to do. The centerpiece of the book is an unusual take on the Edison-vs-Tesla argument. Going against the modern practice of making the former out to be a villain and the latter the hero, the authors argue that evaluated right, Edison was the better inventor. A revealing and startling point that anchors the whole argument is that nearly all of Edison’s 1000+ patents were commercialized, while Tesla’s failed at around an 80% rate, especially in his later phase as an inventor.