Kinbaku -- Release through Restraint

Kinbaku (Shibari) is a Japanese style of bondage (or BDSM) which involves tying up the sex partner (the bottom) using ropes, in a visually intricate pattern.  Kinbaku has been traditionally practiced in erotic tying among the Japanese bondage circle which originated from hojojutsu. Hojojutsu was a medieval military restraint technique mastered by The Samurai in the ancient time of Japan...

A few booksabout this Japanese art of bondage could be found  in Amazon. "The Beauty of Kinbaku", by Master "K" is one of the book about art of kinbaku written in English.

Display of kinbaku usually involve naked or clothed women being tied by rope (commonly hemp and linen) and often suspended above the ground. It looks torturous but its rather simple pattern of tying.

Kinbaku or Shibari Step-by-Step First Lesson