Dual Book Launch: 'Self-Development Strategy' and 'Why It Sells in 3 Minutes' by Takuma Otsubo to be Released Simultaneously
Takuma Otsubo, CEO of Japan Design Co., Ltd., will release two new books on May 20, 2026. The books cover self-growth and sales strategies, proposing essential work styles for the AI era.
📋 Article Processing Timeline
- 📰 Published: May 19, 2026 at 13:00
- 🔍 Collected: May 19, 2026 at 04:31
- 🤖 AI Analyzed: May 28, 2026 at 17:35 (229h 3m after Collected)
Japan Design Co., Ltd. (Headquarters: Toshima-ku, Tokyo; CEO: Takuma Otsubo), an agency specializing in school management and sales/marketing support, announces the simultaneous release of two new books by its CEO, Takuma Otsubo, on Wednesday, May 20, 2026. The titles are 'Self-Development Strategy: I want to grow, but I don't know how to work hard' (Kanki Publishing) and 'Why It Sells in 3 Minutes? How to use time more importantly than sales talk' (Diamond Inc.).
While automation by AI progresses, the 'ability to grow oneself' and the 'ability to build trust with others' are being re-evaluated. Otsubo has coached over 50,000 entrepreneurs, freelancers, and business professionals. Based on this extensive experience, he has established a unique business method that 'anyone can reproduce by knowing the correct way.' These two books propose essential work styles for the AI era through the distinct themes of 'self-growth' and 'sales.'
'Self-Development Strategy' is targeted at business professionals who feel lost in their growth journey. It systematically explains how to become talent that grows independently of superiors or companies, focusing on 'five patterns' including assessing one's current position, analyzing strengths and weaknesses, environmental design, resilience after failure, and techniques for persistence. It is presented as a reproducible method rather than a motivational lecture.
On the other hand, 'Why It Sells in 3 Minutes' develops a unique sales theory focused on 'time management,' based on Otsubo's experience in sales since age 15 and his extensive coaching track record. He argues that 'when to move' and 'in what order' determine success more than the quality of the talk itself, explaining the essential differences between those who can sell and those who cannot.
Both books are characterized by translating the author's personal experiences and insights from coaching 50,000+ individuals into concrete actions that can be implemented immediately. This project is a rare publishing initiative, releasing two books from different publishers on the same day.
■ Book Overview
'Self-Development Strategy'
Author: Takuma Otsubo (CEO, Japan Design Co., Ltd.)
Publisher: Kanki Publishing | Price: 1,600 yen (tax excl.)
URL: https://www.amazon.co.jp/dp/4761210079
'Why It Sells in 3 Minutes'
Author: Takuma Otsubo (CEO, Japan Design Co., Ltd.)
Publisher: Diamond Inc. | Price: 1,600 yen (tax excl.)
URL: https://www.amazon.co.jp/dp/4478122237
While automation by AI progresses, the 'ability to grow oneself' and the 'ability to build trust with others' are being re-evaluated. Otsubo has coached over 50,000 entrepreneurs, freelancers, and business professionals. Based on this extensive experience, he has established a unique business method that 'anyone can reproduce by knowing the correct way.' These two books propose essential work styles for the AI era through the distinct themes of 'self-growth' and 'sales.'
'Self-Development Strategy' is targeted at business professionals who feel lost in their growth journey. It systematically explains how to become talent that grows independently of superiors or companies, focusing on 'five patterns' including assessing one's current position, analyzing strengths and weaknesses, environmental design, resilience after failure, and techniques for persistence. It is presented as a reproducible method rather than a motivational lecture.
On the other hand, 'Why It Sells in 3 Minutes' develops a unique sales theory focused on 'time management,' based on Otsubo's experience in sales since age 15 and his extensive coaching track record. He argues that 'when to move' and 'in what order' determine success more than the quality of the talk itself, explaining the essential differences between those who can sell and those who cannot.
Both books are characterized by translating the author's personal experiences and insights from coaching 50,000+ individuals into concrete actions that can be implemented immediately. This project is a rare publishing initiative, releasing two books from different publishers on the same day.
■ Book Overview
'Self-Development Strategy'
Author: Takuma Otsubo (CEO, Japan Design Co., Ltd.)
Publisher: Kanki Publishing | Price: 1,600 yen (tax excl.)
URL: https://www.amazon.co.jp/dp/4761210079
'Why It Sells in 3 Minutes'
Author: Takuma Otsubo (CEO, Japan Design Co., Ltd.)
Publisher: Diamond Inc. | Price: 1,600 yen (tax excl.)
URL: https://www.amazon.co.jp/dp/4478122237
FAQ
大坪拓摩氏の新刊2冊の発売日はいつですか？
2026年5月20日（水）に2冊同時発売されます。
新刊のタイトルと出版社を教えてください。
『自分で自分を育てる戦略書 成長したいけど、頑張り方がわかりません。』（かんき出版）と、『なぜ、３分で売れるのか？ セールストークより大切な時間の使い方』（ダイヤモンド社）の2冊です。
『自分で自分を育てる戦略書』はどのような内容ですか？
自ら成長できる人材になるための「5つの型」を軸に、現状把握や強み分析、努力の継続技術などを体系的に解説した自己成長メソッド本です。
『なぜ、３分で売れるのか？』の主なテーマは何ですか？
「時間の使い方」に着目し、話し方の巧さよりも「いつ動くか」「どの順番で進めるか」が成約を左右するという独自のセールス論を展開しています。
著者の大坪拓摩氏とはどのような人物ですか？
株式会社日本デザイン代表取締役。1986年生まれ。現場監督やフリーランスを経て起業し、累計5万人以上が受講するオンラインデザインスクールを運営しています。