Sociologist Eduardo Bonilla-Silva will give the talk, "The Invisible Weight of Whiteness: The Racial Grammar of Everyday Life in Contemporary America," Thursday, March 22, at 7 p.m. in the Forum of the Elaine Langone Center at Bucknell University. The talk, which is free and open to the public, is part of the Social Science Colloquium series, "Shades of Black and Brown: Afro-Latino/a Interactions." Professor of sociology at Duke University, Bonilla-Silva argues that "There is a racial grammar that structures cognition, vision and even feelings on a variety of racial matters.