Photo by Eric.

VOTES: Dr. Mary Frances Berry will discuss her book Five Dollars and a Pork Chop Sandwich: Vote Buying and the Corruption of Democracy and share what she’s learned about vote buying, inaccessible voting places, and more. Busboys and Poets (2021 14th Street NW) 6:30-8:30 p.m. Free

TREES: Join a remote-sensing scientist, arborist, science journalist, and the deputy director of D.C.’s Urban Forestry Administration for a discussion on the state of trees. A DC Science Cafe event. Busboys and Poets (1025 5th Street NW) 6:30-8:30 p.m. Free

BALLET: Watch two programs by the New York City Ballet that are showing at the Kennedy Center through Sunday. (2700 F Street NW) 7 p.m. $39-119