LT. GARY F. CORNELIUS retired in 2005 from the Fairfax County (VA) Office of the Sheriff after serving over 27 years in the Fairfax County Adult Detention Center. His jail career included assignments in confinement, work release, programs, planning/ policy and classification. Gary is an independent freelance correctional author and trainer. He has taught corrections courses for George Mason University since 1986, teaches corrections in-service sessions throughout Virginia, and has performed training and consulting for the American Correctional Association, the American Jail Association, and the National Institute of Justice. Gary is the author of several books, including The Correctional Officer: A Practical Guide, The American Jail: Cornerstone of Modern Corrections, The Art of the Con: Avoiding Offender Manipulation, and Stressed Out: Strategies for Living and Working in Corrections. His latest book, The High-Performance Correctional Facility: Lessons on Correctional Work, Leadership and Effectiveness is now available from the Civic Research Institute.