Tech. Sgt. Jennifer Kernan, an aerospace operational physiology technician with the 633rd Aerospace Medical Squadron, reads to the preschool children at the child development center at Langley Air Force Base, Va., Feb. 16, 2016. Kernan organizes The Mayor’s Book Club programs at Langley, which allows volunteers to reach out to preschool children and encourage a healthy habit for reading. (U.S. Air Force photo by Airman 1st Class Kaylee Dubois)