About

About the Author

Eitarou Ishiguro (nickname: Eight) is an IT & AI consultant based in Japan.
With experience in IT subsidiaries of trust banks, trust banks themselves (head office and operations centers), and as a hands-on CIO of a small trading group holding company, he has long been involved in system development, infrastructure, project management, operations and audits, and business/IT strategy.

Drawing on this background, he now focuses on translating IT and AI into something that small businesses and individuals can actually use without being overwhelmed, instead of leaving them “difficult and opaque.”

Biography

After graduating from Keio University with a degree in Commerce, Eitarou Ishiguro
built his career at the intersection of finance and technology.

His experience spans:

  • Infrastructure and application development, and project management at an IT company affiliated with a trust bank
  • System planning, implementation, and vendor management in the IT and business departments of a trust bank
  • Internal audit roles at a trust bank and holding company
  • Overall operations management at a trust bank’s data center
  • Hands-on CIO for a small trading group holding company, responsible for
    infrastructure, networks, business systems, and overall IT strategy

Thanks to this experience, he specializes in a style that combines structured explanations with concrete success and failure stories, rather than theory alone.

Other Activities

In addition to writing, he is engaged in:

  • “Right-sized” IT & AI consulting tailored to company size and budget
  • Hands-on support for system implementation and business process improvement for SMEs and sole proprietors
  • Development and training of goal-setting and action-planning methods based on the “Five-colored Eyes Method (FEM)”
  • Creating courses, materials, and templates for safe and effective collaboration between people and AI

In his private life, he enjoys reading, anime and light novels, playing guitar and producing music, karaoke, and shogi.
He also experiments with AI-assisted creation as a hobby.

Contact & Information

You can find the latest updates, articles, and related content at:

Comments and constructive feedback are always welcome.
He also anticipates conversations with readers overseas who are interested in Japanese culture and ways of working, and has set up an online meeting environment that uses automatic translation.
Please note in advance that there may be some time lag and nuance shifts due to translation.

Downloadable Figures and Templates

Figures, templates, and other materials used in this book—such as those related to FEM, AIBOF, and HCEA—are available from the download page on the consulting / business site.

  • Downloads for figures and templates (FEM / HCEA / AIBOF, etc.):
    via the “Download” page on https://bs-p.tokyo/biz/

These resources are intended as support tools when you apply the contents of this book to your own work or your team’s practice.