Regarding the on-demand offerings we have, we do have an HDP Essentials course, but currently it is only available via the larger, bundled Self-Paced Learning Library described at https://hortonworks.com/self-paced-learning-library/. We are working towards offering individual on-demand courses, but not there yet. You could register for it individually via our live (remote in most cases) delivery options shown at https://hortonworks.com/services/training/class/hadoop-essentials/. ... View more