CrossMedia Publishing Co., Ltd. (Headquarters: Shibuya-ku, Tokyo, President: Koichiro Kobayakawa), which mainly publishes business and practical books, published the book 'What Did History's First-Class Learn from Their Mentors?' on April 2, 2026.

This book is the 'historical version' of the 'World's First-Class' series, following 'What Does the World's First-Class Do on Holidays?' (over 200,000 copies sold) and 'What Does the World's First-Class Talk About in Small Talk?' (over 60,000 copies sold).

It explains the techniques of learning from a 'mentor' that are necessary precisely because it is the AI era, using examples of historical greats such as Oda Nobunaga, Tokugawa Ieyasu, and Ino Tadataka. Historian Kozo Kaku analyzes the mentor-disciple relationships of historical elites—why first-class figures learned from 'mentors' rather than 'self-study,' and how they utilized what they learned—and proposes them as skills applicable to the modern age.

◆ Related URLs (Company site, etc.) https://cm-publishing.co.jp/books/9784295411895/ Amazon https://www.amazon.co.jp/dp/4295411892/ Rakuten Books https://books.rakuten.co.jp/rb/18516337/

● Why 'Mentors' are Needed Exactly Because it's the AI Era With the development of AI technology, we are in an era where anyone can easily obtain information. However, for this very reason, it is becoming important to enhance 'human power' (the improvement of oneself as a person and the exhibition of charm). AI provides correct answers, but only flesh-and-blood humans can elevate the fundamental sources of human dignity and creativity.

Looking back at history, Sakamoto Ryoma learned from Katsu Kaishu, Oda Nobunaga from Takuenzu Soen, and Tokugawa Ieyasu from Takeda Shingen, and each achieved great deeds that left their names in history. What they learned from their mentors was not merely knowledge or techniques, but a way of life and judgment as human beings. Because today is the golden age of AI, the value of learning from a mentor who is a flesh-and-blood human is being re-evaluated.

● Choosing a Mentor Changes Your Life 180 Degrees! In this book, through examples of historical figures...

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