The submission portal is now open! useR!2020 invites researchers from around the world to submit abstracts for presentation at our 2020 meeting in St. Louis, Missouri, USA. The meeting will feature a wide range of exciting talks, discussions, and networking opportunities. This is an opportunity to share your work with international colleagues who are R enthusiasts, including many current and future leaders in the R community. We welcome abstracts related to R from any disciplinary background, whether the work is computational, empirical, or theoretical in nature.