In his book, “Deep Denial: The Persistence of White Supremacy,” Billings asks how social messages since childhood have shaped us. It’s not the “haters” who allow white supremacy to persist, he says, but “those of us who say we’re against racism, yet don’t do anything about it because it seems normal.” As we explore the past, we get energy to transform our society. Book Sale follows. Proceeds to The People’s Institute for Survival and Beyond (pisab.org). Co-sponsor: @TheRobbinsHouse.