The Thirteenth Meeting of the International Congress on Mathematical Education (ICME-13) convened in Hamburg, Germany, in July, 2016. There were two Topic Study Groups (TSGs) dedicated exclusively to adult learners and the authors of this paper served on the organizing committees of these groups. Arrangements were made by the congress committee for the publication of peer-reviewed papers from each TSG by Springer International Publishing AG in a series of edited books. In this paper we focus on our experiences as editors of the monographs resulting from our two TSGs.