Free things to do

• Terence Tao: Six Math EssentialsSun, Nov 15 Carroll Gardens-Cobble Hill-Gowanus-Red Hook
• Exhibition Tour, The Battle of Brooklyn: Fought and RememberedExhibition Tour, The Battle of Brooklyn…Tomorrow 3 p.m. Brooklyn Heights
• BooksMarlon James: The DisappearersSun, Oct 11 Carroll Gardens-Cobble Hill-Gowanus-Red Hook
• Grieving & WeavingToday 6:30 p.m. Sunset Park (West)
• Fury Young | Catalyst In‑Store LIVETomorrow 5 p.m. Catalyst Records, Stall 16