#Japan #Tokyo #HR Library #Trustyyle #Tanimoku

Uncovering Hidden Strengths in HR

On November 15, 2025, the "HR Library" community held a significant event marking the publication of two important works, "Uncovering Hidden Strengths" and "How HR Professionals Operate," moderated by Hiroyuki Nagashima, CEO of Toitoi LLC. The event featured insightful presentations and discussions on personal strengths and career paths in human resources, aiming to help participants redefine their value and potential in the HR field.

Background and Purpose of the Event

The HR Library serves as a community where professionals in human resources gather to learn and grow together. It supports members and visitors in achieving career independence and enhancing their skills. To celebrate the publication of the new books by authors Yoshiharu Ishiihara and Yosuke Yoshida, this event was organized to combine their insights and facilitate a discussion on personal and professional growth in HR.

Featured Speakers

Yoshiharu Ishiihara

• - Position: Developer of Tanimoku, Co-Creation Producer at Persol Career.
• - Background: Born in 1979, after graduating from university, Ishiihara began his career in Germany. After returning to Japan, he joined a major information service company and was part of the founding team of the job placement service "doda" at Persol Career. He has led marketing for several new business initiatives, including the high-class job search service "doda X." In 2017, he developed the Tanimoku project and currently promotes mission co-creation while advocating for individual career ownership.

Yosuke Yoshida

• - Position: Director of HR Library
• - Background: After completing a graduate program at Ritsumeikan University, Yoshida joined Recruit Management Solutions in 2007, where he held various management roles. In 2021, he founded Trustyyle and provided organizational support to companies lacking HR capabilities. In April 2024, he established the HR Library after a successful crowdfunding campaign. With extensive experience in recruitment and organizational development across over 500 companies, he continues to enhance learning environments for HR professionals.

Moderator Profile

Hiroyuki Nagashima

• - Experience: Former CHRO at Renova, HR leader at Nitori, currently a representative of Toitoi LLC and a guest researcher at Chuo University. He has delivered more than 50 lectures annually, sharing valuable insights into the integration of technology and dialogue-based organizational development, emphasizing the importance of talent management.

Participant Feedback

Surveys conducted after the event reflected numerous positive sentiments:

• - Attendees felt more empowered regarding goal-setting and saw the potential of the Tanimoku project.
• - Many participants expressed a deeper understanding of their roles in HR and the importance of integrating their strengths into their careers.
• - The discussions resonated on the challenges of HR goaling and emphasized the future importance of "relationships" and "meaning-making" in the field.
• - Several participants noted practical takeaways that they plan to implement in their daily work and career development, signaling that the event provided not just theoretical insights but actionable learning opportunities.

Looking Ahead

The HR Library plans to continue hosting events, inviting authors and industry leaders to facilitate discussions that connect theory to practice. The tagline "Learning with Colleagues, Shaping the Future" will guide the community’s efforts as they enhance their support for personal career autonomy and organizational development. Updates on upcoming events will be shared regularly via the official website and social media channels.

About HR Library

Opened on April 1, 2024, in Ningyocho, Tokyo, the HR Library is a collaborative workspace and community gathering place for HR professionals. With over 2,500 HR-related books and more than 700 members, it operates under the motto "Learning with Colleagues, Shaping the Future."

• - Location: 1-12-7, Nihonbashi Kakigaracho, Chuo City, Tokyo
• - Official Website: hr-library.jp
• - Social Media: X, LinkedIn