The collection currently consists of 8 volumes in which Saito Sensei covers more than 430 empty - handed aikido techniques .
Aikido Journal has published a series of ebooks authored by Morihiro Saito , 9th dan , in high - resolution PDF format .
The collection currently consists of 8 volumes in which Morihiro Saito   covers more than 430 empty - handed aikido techniques .
Aikido Journal has published a series of ebooks authored by Morihiro Saito , 9th dan , in high - resolution PDF format .