Just by recording the names of people you meet, you begin to see your connections more clearly! 'Hito Nikki' (authored by Gen Uchiyama), a book introducing this method, will be published by Diamond Inc. on June 17. With just one minute of daily journaling, you can reflect on your relationships and enrich both your professional and personal life.

Gen Uchiyama: Author, 'Hito Nikki', Diamond Inc.: Publisher

What is 'Hito Nikki' — The World’s Easiest Journal?

It's said that during our lifetime, we meet around 30,000 people. Every day, we interact with many individuals, exchange words, advance our work, and build our lives — these encounters enrich our lives. Yet, even when we want to cherish these connections, our busy lives often blur our memories: 'When did I last see that person?' 'What did we talk about?' These personal memories gradually fade.

That’s where 'Hito Nikki' comes in — introduced in this book. 'Hito Nikki' is a simple daily journal that takes just one minute: you only record the 'date,' 'event,' and 'names of people you met.' As you continue recording, you’ll start to see who has been part of your life and in what context — essentially creating your own personal 'cast list' of life.

How 'Hito Nikki' Helps in Both Work and Personal Life

'Hito Nikki' is useful before, after, and long after meeting someone.

Before meeting someone you haven’t seen in a while, reviewing past interactions in your 'Hito Nikki' makes conversations flow more smoothly. For new acquaintances, recording right after meeting helps solidify their name and face in your memory. Over time, patterns emerge: who you meet most often, who you haven’t seen in a while, and which professional contacts you interact with frequently. Understanding these relationship patterns can help you reassess how you approach work and manage your personal time.

This book explains the basics of keeping a 'Hito Nikki,' how to apply it to daily life and work, and shares real reader feedback and creative ways people have used it. You’ll learn how to manage relationships on your own terms, maintaining a comfortable distance without being overwhelmed. Why not start this new habit today and begin looking forward to meeting people?

From p.35

Voices from Readers: 'I’m Glad I Tried It!'

"I stopped forgetting names" (Female, 20s, office worker)

"I can now keep casual conversations going even with occasional acquaintances" (Female, 20s, office worker)

"I’ve started valuing new encounters more" (Female, 30s, job seeker)

"My mundane daily life has become something to look forward to" (Female, 40s, remote worker)

"Counting how many people I’ve met this month is fun" (Male, 40s, entrepreneur)

"I was able to record the last day I saw a friend before they passed away" (Male, 60s, entrepreneur)

Table of Contents

Introduction

Part 1 [Basics] Try Writing a 'Hito Nikki'

Chapter 1 People Are Assets

Chapter 2 A Simple 'Hito Nikki' You Can Start in One Minute a Day

Chapter 3 Small Changes Experienced by Six People Who Kept a 'Hito Nikki'

Part 2 [Applications] Eliminate Relationship Anxiety with 'Hito Nikki'

Chapter 4 Turn Relationship Worries into Confidence with 'Hito Nikki'

Chapter 5 Applying 'Hito Nikki' to Your Work

Conclusion

End-of-Book Bonus: The Complete 'Hito Nikki' Guide — Just One Minute a Day

End-of-Book: Try Writing Your Own 'Hito Nikki'

Author Profile: Gen Uchiyama (Uchiyama Gen)

Visiting Lecturer, Institute for Social Collaboration, Aoyama Gakuin University

Director, General Incorporated Association Workshop Designer Development Organization; Representative, G office

Born in Tokyo in 1969. Studied theater at HB Studio (New York) and RADA (London), and instructional design at Kumamoto University Graduate School. Began acting in 1992, and since 1997 has also served as a lecturer for university and corporate training programs. Currently provides workshop-style learning programs primarily for large corporations. At Aoyama Gakuin University, served as Visiting Associate Professor and Project Professor before assuming current role. The 'Workshop Designer Training Program' he teaches received the HR Award (2014) and Good Design Award (2015). Has been keeping a 'Hito Nikki' since 2009.

'Hito Nikki'

Author: Gen Uchiyama

Price: ¥1,870 (tax included)

Release Date: June 17, 2026

Publisher: Diamond Inc.

Format: Yonkobon, 276 pages

https://www.amazon.co.jp/dp/4478121664/

*Images and photos in this release are for media reporting purposes related to this book only.

FACT BOX

  • Source: PR TIMES
  • Category: New Product
  • Organizations: HB Studio / RADA