Knights of the 21st Century (K21) is a men's ministry study series that churches and other organizations are using to motivate men. At K21, we produce DVD programs, books and other materials with the goal of encouraging men to make a positive difference in their relationships and communities. K21 materials uses our unique knighthood metaphor to call men to nobility in their thinking and actions. We aim to motivate and challenge men to reach their potential in all areas of life so that they can become strong and reliable leaders, fathers, husbands and friends.