Rory Miller is the award-winning author of "Meditations on Violence" and many other books and DVDs. (Biography: http://ymaa.com/publishing/author/rory-miller) He has served for seventeen years in corrections as an officer and sergeant working maximum security, booking and mental health; leading a tactical team; and teaching subjects ranging from Defensive Tactics and Use of Force to First Aid and Crisis Communications with the Mentally Ill. - See more at: http://ymaa.com/publishing/authors#sthash.5qxmt37O.dpuf less