Diamond, Inc.
Diamond, Inc. is a publishing company founded in 1913. We are a leading publisher in the Japanese market, offering a diverse range of magazines and bestselling titles that enrich both the professional and personal lives of our readers. Our books are designed to support business professionals around the clock. While we primarily specialize in business and self-help titles, we also have a strong presence in other genres, including health, beauty, education, parenting, and children's books. Our bestseller, The Courage to Be Disliked, has sold over 3 million copies in Japan. It has been translated into more than 40 languages, with over 12 million copies sold worldwide.
地址：6-12-17 JINGUMAE, SHIBUYA-KU, TOKYO #150-8409 JAPAN