Transition Metal Dichalcogenide Bilayers The cover page schematically illustrates the twisted transition metal dichalcogenides (t-TMDs) bilayer and the associated Moiré superlattices which may give rise to exotic physical phenomena. In article number 2000153 by Haitao Yang, Jiadong Zhou, Zheng Liu and co-workers, an update-to-date overview of the recent progress in the synthesis of t-TMDs and the study of the associated properties are presented. Challenges and future research directions are also discussed in the light of recent advances in the field.