Report on the First and Second Workshops on Hierarchical Planning Held at the International Conference on Automated Planning and Scheduling

Hierarchical planning has attracted renewed interest in the last few years. Consequently, the time was right to establish a workshop devoted entirely to hierarchical planning — an insight shared by many supporters. In this article, we report on the first International Conference on Automated Planning and Scheduling workshop on hierarchical planning held in Delft, The Netherlands, in 2018 as well as on the second workshop held in Berkeley, CA, USA, in 2019.