My name is Kakeami. As hinted by my username, I have a deep affection for manga—“Kakeami” refers to a traditional shading technique used in Japanese manga. Until my third year of junior high, I aspired to become a manga artist. However, I abandoned this dream realizing I lacked the courage and skill to even complete an 18-page short story, not to mention a full 45-page story.
I’ve since integrated into society, working as a company employee and fathering two children. As a hobby, I'm pursuing a Master’s in Computer Science through OMSCS at the Georgia Institute of Technology. I dream of celebrating my graduation by traveling to the U.S. with my family, budget and global circumstances allowing.
I'm the author of a two-volume series on Data Visualization with Python, published by Gihyo (技術評論社).
Volume 1: Fundamentals データを見る力・見せる技術 368 pages |
Volume 2: Applications データを問う力・伝える技術 424 pages |
These books teach data visualization principles using real-world datasets from manga, anime, and games, with hands-on Python exercises.
- Release Date: January 22, 2026
- Support Site: vizbook-jupyter
- Meta Analysis: The 1,161 Hours, 50 Minutes, and 38 Seconds to Publishing Books
- Blog - Personal blog on data visualization, pop culture × statistics, and lessons from side projects, built with Quarto
- The 572 Hours, 29 Minutes, and 2 Seconds to Georgia Tech Admission - A detailed chronicle of the journey and time spent getting admitted to Georgia Tech's OMSCS program
- Learning Data Visualization through Manga - A Jupyter Book teaching data visualization using manga data from Japan's Media Arts Database (MADB)
- X -
_kakeami - GitHub -
kakeami - Zenn.dev -
kakeami - しずかなインターネット -
kakeami - Email:
kakeami dot contact at gmail dot com
This graph displays the number of tasks completed in Todoist, a popular task management app. Each pixel represents the count of tasks marked as done on that particular day.
This graph tracks the number of mindful breaths counted each day as part of a mindfulness or meditation practice. Every pixel signifies the total count of conscious breaths taken on that specific day.
This graph tracks the gap between current and target body weight (kg). As the value approaches zero, the target is closer; negative values mean the goal has been achieved.



