The Focus Section on Heterogeneity in Beyond Graphene 2D Materials in JMR has been published now. Guest Editors are Kai Xiao, Zakaria Y. Al Balushi, Sefaattin Tongay on this Focus Section.” Visit the Focus Section webpage! The guest editors wish to thank the authors who contributed to the “Heterogeneity in Beyond Graphene 2D Materials” Focus Section. The Journal of Materials Research editor Gary L. Messing and principle editor Joshua Robinson deserve special thanks for making this Focus Section a success. The editorial assistance of Leslie Truver is also greatly appreciated.