The title of this presentation could have been Training within laboratory animal science - where we are and where we should be. While training has been the domain of facility managers for many years, the concept of a dedicated trainer is relatively new at minimum 20 years when measured by LAWTE. Ergo, the theme of metrics, measuring the recent milestones of training and accounting for training in a facility. The phrase One size doesnt fit all has a numerical overtone; that concept certainly applies to teaching. And as much as animal research varies across the world, so do the methods and measures of training effectiveness. The presentation will highlight various training metrics for the benefit of trainers, managers, and administrators.