Book is author's memoir about his years as a Deputy Sheriff in Parker County, Texas. He served as a patrol officer, public relations officer, and as a member of the Crimes Against Children division, among other duties.

Texas has one of the world’s largest prison systems, in operation for more than 170 years and currently employing more than 28,000 people. Hundreds of thousands of people have been involved in the prison business in Texas: inmates, correctional officers, public officials, private industry representatives, and volunteers have all entered the secure facilities and experienced a different world. Previous books on Texas prisons have focused either on records and data of the prisons, personal memoirs by both inmates and correctional officers, or accounts of prison breaks. Tall Walls and High Fences is the first comprehensive history of Texas prisons, written by a former law enforcement officer and an officer of the Texas prisons. Bob Alexander and Richard K. Alford chronicle the significant events and transformation of the Texas prison system from its earliest times to the present day, paying special attention to the human side of the story. Incarceration policy evolved from isolation to hard labor to rodeo and educational opportunities, with reform measures becoming an ever-evolving quest. The complex job of the correctional officer has evolved as well—they must ensure custody and control over the inmate population at all times, in order to provide a proper environment conducive to …