Executive Director of New York Public Library’s Schomburg Center for Research in Black Culture Khalil Gibran Muhammad, the author of “The Condemnation of Blackness: Race, Crime and the Making of Modern Urban America,” will be appearing at Friend Center 101, Olden and William Streets, in Princeton at 7 p.m. on Wednesday, June 8. The program will be moderated by Rhinold Lamar Ponder. Admission is free, though registration is suggested.