
Bujutsu is the collective term for the practical fighting systems of Japan. The principle aim of these arts is to develop practical fighting skills in their practitioners. Unlike the Budo, these systems are not concerned primarily with any form of spiritual development but are concerned with pragmatic effectiveness.
The only real difference between the classical and modern alternatives are that the weapons and circumstances studied have adapted to fit with modern circumstances.
For references to Classical Bujutsu, the reader is referred to
Classical Bujutsu (The Martial Arts and Ways of Japan, Vol. 1)
Classical Budo (The Martial Arts and Ways of Japan, Vol. 2)
Modern Bujutsu and Budo (The Martial Arts and Ways of Japan, Vol. 3)
Draeger, Donn F. Whetherhill, 1974.
- This 3-volume set is the standard reference work on Japanese Martial Arts.
- Includes section on Aikido in Book 3.

Koryu Bujutsu: Classical Warrior Traditions of Japan by Diane Skoss (Editor)
Sword and Spirit : Classical Warrior Traditions of Japan Volume 2 by Diane Skoss (Editor)