Black Like Me was a really good read. Well worth the time, although I imagine it's pretty dated by now.
"Black Like Me is a nonfiction book by journalist John Howard Griffin first published in 1961. Griffin was a white native of Dallas, Texas and the book describes his six-week experience travelling on Greyhound buses (occasionally hitchhiking) throughout the racially segregated states of Louisiana, Mississippi, Alabama, and Georgia passing as a black man. Sepia Magazine financed the project in exchange for the right to print the account first as a series of articles.
Griffin kept a journal of his experiences; the 188-page diary was the genesis of the book.
At the time of the book's writing in 1959, race relations in America were particularly strained and Griffin aimed to explain the difficulties that black people faced in certain areas. Under the care of a doctor, Griffin artificially darkened his skin to pass as a black man."