Planetary scientists can face challenges in effectively interacting with audiences. To help address their needs, the Lunar and Planetary Institute (LPI) conducts professional development for planetary scientists through seminars and workshops. LPI also enables scientists to participate in public events, and connects them to requests for speakers. LPI’s Sharing Planetary Science seminars include current educational research and incorporate the participants’ own knowledge and experiences in engaging public audiences. Participants attend in-person or online. Post-session surveys indicate that all participants (100%) have found at least one aspect of each seminar valuable. Resulting resources are available online. www.lpi.usra.edu/education/scientist-engagement. In March 2019, working with the Volatiles, Regolith and Thermal Investigations Consortium for Exploration and Science (VORTICES) program, LPI conducted the first Planetary Scientist Engagement Institute. This 2-day training was attended by 23 planetary scientists from across the U.S. who learned about audience needs, common solar system misconceptions, resources for engaging audiences, addressing controversial topics, partnering to reach diverse audiences, and more. In the follow-up evaluation, all (100%) of participants found that the program met their goals and was useful. LPI has conducted a variety of scientist engagement activities at conferences, including sessions and workshops on communicating with audiences, using social media to share their science, and communicating with news media. All have proven popular. LPI hosts a variety of public events, and enables planetary scientists to participate as speakers and as activity facilitators. LPI connects scientists with requests for presentations, both locally and virtually. Future plans include developing a mechanism for evaluating the process and the perceived impact by the scientists. This poster will include further details of these professional development sessions, their resulting resources, the evaluations, and future plans.