CORE Values Books: Pratt Learns Self-Control CORE Values Books: Pratt Learns Self-Control from Courtney Mertel CORE Values Books: Pratt Learns Self-Control Pratt Learns Self-Control CORE Book. Curriculum books for the schools. gLike CORE Values Books: Pratt Learns Self-Control Pratt Learns Self-Control CORE Book. Curriculum books for the schools. Graphic Design Share R 7 n Available Freelance, Full-time Courtney Mertel Marketing Director Grand Rapids, MI Follow Contact