Volume 1 includes proper footwork; counters to punches and strikes; and effective blocks, leverage, and pressure. Volume 2 utilizes anatomy for proper technique: key wrist leverages, nerve-pressure takedowns, and kick defenses. Volume 3 explores nerve pressure for defense: breaking chokes, head locks, bear hugs and other grabs, and proper armbars. Volume 4 features advanced joint locks and takedowns, more practical techniques for self-defense, as well as unique and effective aiki-do for the more advanced student. Volume 5 includes defense against weapons, including knives, clubs, and guns; critical points to recognize when confronted by an attacker with a weapon; ground defense to aid survival, and much more.