Much of the way in which humans respond and adapt to the environment occurs implicitly, without conscious awareness. Yet, motor skills in sport, and any number of the learned skills necessary for everyday life, often are acquired explicitly, which can result in too great a contribution from consciousness during their execution. This chapter summarizes research that suggests there are advantages of acquiring motor skills implicitly, without orchestration by explicit (conscious) processes. The chapter describes implicit motor learning paradigms, such as secondary task learning, analogy learning, errorless learning and reduced feedback approaches and reviews potential mechanisms that may underlie performance advantages associated with implicit motor learning.