The tape recorder included a detailed instruction manual written by a young Akio Morita who was to become Sony's Chairman. When sales of the Model G commenced, despite the view being, "We have developed an incredible product from scratch. Surely it will sell well," it did not sell at all. Thinking of the reason why, the conclusion was that, "Because they don't know its value, if we don't let the world know more about this value, we will have no means of selling it." Here, the need for them to personally develop the market, in other words market development, was strongly felt and Morita decided to write an instruction manual.