The Workshop Manual for 2021 is designed for the professional development of demand planners and forecasters, demand managers, logistics and operations experts involved in the development and use of best forecasting practices and performance management. It can be used for remote online learning, onsite workshops and self- study. The material is periodically updated to reflect new developments in forecasting techniques as documented in Change&Chance Embraced: Achieving Agility with Smarter Forecasting in the Supply Chain by Hans Levenbach, PhD