Collections

Discover the Hidden Legacy of Japan's Martial Arts.

From translated scrolls and period publications to scholarly studies and preserved teachings, this archive offers insight into the traditions of ninjutsu, bujutsu, and related martial schools. Discover the history, philosophy, and tactical knowledge that shaped these enduring arts.

彩術

Collections

Mas Oyama Collection

Dr. Masaaki Hatsumi

Yumio Nawa Collection

Fujita Seiko Collection

Robert C. Gruzanski

Curator of the Gruzanski Archives

© 2002–2026 Robert C. Gruzanski. All rights reserved. Content may not be reproduced or used without permission.