Free Library of Philadelphia - Central Branch 1901 Vine St.; 215-686-5322. www.library.phila.gov.
Atul Gawande - Better: A Surgeon's Notes on Performance. $14; $7 students. 2/4 8 pm.
Grand Army of the Republic Civil War Museum & Library 4278 Griscom St.; 215-289-6484. garmuslib.org. Camp William Penn & The Training of Black Troops for Civil War Service - Black History Month presentation by Professor Don Scott. Donations accepted. 2/3 1:30 pm.
Mermaid Inn 7673 Germantown Ave.; 215-247-9797. www.themermaidinn.net. Bothy Open Mic - Open mic for music, comedy & poetry. 2/4 9 pm.