In the world of hip-hop, "keeping it real" has always been a primary goal--and realness takes on special meaning as rappers mold their images for street cred and increasingly measure authenticity by ghetto-centric notions of "Who's badder?"

In this groundbreaking book, Jeffrey O. G. Ogbar celebrates hip-hop and confronts the cult of authenticity that defines its essential character--that dictates how performers walk, talk, and express themselves artistically and also influences the consumer market. Hip-Hop Revolution is a balanced cultural history that looks past negative...