Tupac Shakur is one of the most influential rappers of all time. He died in 1996 at 25 years old from a drive-by shooting. The auction, titled The Art and Influence of Hip Hop, includes items from many well-known hip hop artists, and also includes love letters from Tupac Shakur to high school sweetheart Cosima. The poetry booklet is estimated to sell for $300,000. Find out more at Forbes. Find more news and stories of interest from the book world in Breaking in Books.