"New Sales Guide" Diamond Inc. First edition: 1974 Price: ¥1200 A valuable sales guide book. Although it has aged over time, both the cover and the text are clean, with no writing or markings, so you can enjoy reading it meaningfully. 2 27 chapters focusing on "sales techniques" – from the "mindset" of frontline salespeople to "self-management" – An essential manual for acquiring basic sales knowledge and personal development, useful for both newcomers and veterans.