Kin Cheung / AP Photo
Mark Obama Ndesanjo, U.S. President Barack Obama's half-brother, holds his self-published book "Cultures: My Odyssey of Self-Discovery" during an interview in Hong Kong. President Barack Obama’s half-brother is publishing the autobiography that details the domestic abuse that served as the theme for his earlier semiautobiographical novel, which featured an abusive parent patterned on their late father.