Commissioner Shook graduated from Wallenpaupack Area High School, after which he owned and operated the Wallenpaupack Lanes, a bowling alley which he relocated to site off Route 6 just west of Hawley in 1994. In 1999, he took over operation of the Lake Region IGA supermarket, which he has operated for more than 20 years. In 2007, he created the Community Dock Foundation, which is funded privately and through annual fundraising events and helps those in need.
He served on the Board of Directors for the Chamber of the Northern Poconos and its predecessor the Pocono Lake Region Chamber of Commerce from 2000 to 2021, serving as President and Treasurer. He currently serves on the Board of Directors of the Lake Wallenpaupack Watershed Management and has previously served on the Wayne County Investment Board and the Hawley Parks & Recreation Commission.
In 2021, Shook and his partner opened the Paupack Watering Hole on Route 6 just east of Hawley.
He and his wife of more than 20 years, Rebecca, live in Palmyra Township. They have three daughters.