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Books by DK Hayek   &    Kenryu Hayek

Here’s a clear, engaging list of the main published titles with short introductions and where to buy them. Most are available in Kindle and paperback formats primarily through Amazon. Training-related manuals may also be accessible through membership at ShibataDojo.org.

Martial Arts & Practical Training Guides

Jujiken-jutsu the Master Text The foundational manual of the Cross Fist Method—a living koryu system rooted in centuries of battlefield practicality. It blends decisive striking, joint control, pressure-point work, and elemental principles into a complete, self-paced path for serious practitioners. Ideal for those who want more than sport martial arts. Available on Amazon (paperback and Kindle).

Jujiken-jutsu for Seniors: Elemental Practices for Health, Healing, and Confidence Gentle, practical training designed specifically for older adults. Focuses on mobility, balance, breathing, simple awareness skills, and confidence-building self-defense drawn from the same traditional roots—delivered in an accessible, large-print friendly format. Available on Amazon (Kindle and paperback).

Grey Ninja: A Modern Man’s Guide to Safety, Awareness, and Self-Defense A no-nonsense, beginner-friendly handbook for everyday protection. Covers situational awareness, discreet self-defense, digital safety, and the mindset of the “grey man”—someone who stays low-profile yet capable when it matters. Perfect for men who want practical skills without the dojo drama. Available on Amazon (Kindle and paperback).

RyukyuTe Kempo: From Iron Body to Hidden Hand A detailed exploration of authentic Okinawan warrior tradition, revealing both the public curriculum and the deeper, rarely documented aspects of the art. Written from the perspective of a lineage holder, it bridges historical transmission with practical application for modern students. Available on Amazon (paperback).

Jujiken-jutsu Women’s Self-defense: Don’t Be A Victim Practical, empowering techniques and mindset training tailored for women. Emphasizes awareness, simple high-percentage responses, and confidence rather than complex forms—rooted in the same traditional system but adapted for real-world scenarios. Available on Amazon (Kindle and paperback).

Fiction – The Ninja Legacy Series

Shadows in the Desert (Book 1) A half-Japanese teenage girl in Arizona is pulled from ordinary high-school life into a hidden world of legacy, danger, and ancient skills. The series opener mixes coming-of-age tension with martial intrigue and quiet spiritual undercurrents. Available on Amazon (Kindle and paperback).

Shadows in Tokyo (Book 2) The story moves to modern Japan, where tradition and technology collide. Characters face deeper tests of loyalty, skill, and identity as the shadow world expands. Available on Amazon (Kindle and paperback).

New Kyoto 2087: Shadows of the Shroud (Book 3) Cyberpunk meets shinobi legacy in a near-future Japan. High-tech control systems, ancient warrior codes, and personal redemption intertwine in a stylish, action-driven installment. Available on Amazon (Kindle and paperback).

Shadow of Hope (Book 4) A young shinobi-samurai navigates modern Tokyo where faith, honor, and cutting-edge technology intersect. Themes of mercy, duty, and spiritual resilience close the series on a reflective yet action-filled note. Available on Amazon (Kindle and paperback).

Other Works

Pulse of the Unbound: Plant Earth 2089 (DK Hayek) A 30-chapter cyberpunk epic set in a dazzling, bioengineered future. An unenhanced investigator fights corporate neural control in a world of crystalline cities and brain-computer interfaces. Rebellion, love, and the question of what it means to remain human drive this fast-paced story. Available on Amazon (paperback and Kindle).

Religion’s Power and Peril: Jesus’s Call to Truth An honest, wide-ranging look at major world religions through the lens of Jesus’ teaching. Explores both the genuine power of faith and the dangers of institutional distortion, inviting readers toward clarity and authenticity. Available on Amazon (Kindle and paperback).

From Earth to Eternity (in production) A biblical chronicle series spanning creation to consummation. Currently previewed on DKHayek.com; full release forthcoming.

Shorter Christian study materials and reflections (Dead Sea Scrolls guide, eternity-focused pieces, and related writings) appear periodically on DKHayek.com.


Where to buy

  • Primary marketplace: Amazon (search author names “Kenryu Hayek” or “DK Hayek”).
  • Training manuals and dojo resources: membership access via ShibataDojo.org.
  • Author site for announcements and Christian writing: DKHayek.com.

Prices and formats can change; check the current Amazon listings for the latest editions and availability.