Robert Greene is the author of the New York Times bestsellers The 48 Laws of Power, The Art of Seduction, The 33 Strategies of War, and The 50th Law. His highly anticipated fifth book, Mastery, examines the lives of great historical figures such as Charles Darwin, Mozart, Paul Graham and Henry Ford and distills the traits and universal ingredients that made them masters. In addition to having a strong following within the business world and a deep following in Washington, DC, Greene’s books are hailed by everyone from war historians to the biggest musicians in the industry (including Jay-Z and 50 Cent).

Greene attended U.C. Berkeley and the University of Wisconsin at Madison, where he received a degree in classical studies. He currently lives in Los Angeles.

Curtis James Jackson III (born July 6, 1975), better known by his stage name 50 Cent, is an American rapper, actor, entrepreneur, investor, record, film, and television producer. Born in the South Jamaica neighborhood of the borough of Queens, Jackson began selling drugs at age twelve during the 1980s crack epidemic. Although he left drug-dealing to pursue a musical career, he was struck by nine bullets in a 2000 shooting. After Jackson released the compilation album Guess Who's Back? in 2002, he was discovered by Eminem and signed by Shady Records, Aftermath Entertainment and Interscope Records.

With the aid of Eminem and Dr. Dre (who produced his first major-label album, Get Rich or Die Tryin'), Jackson became one of the world's best selling rappers and rose to prominence with East Coast hip hop group G-Unit (which he leads de facto). In 2003 he founded G-Unit Records, signing his G-Unit associates Young Buck, Lloyd Banks and Tony Yayo. Jackson had similar commercial and critical success with his second album, The Massacre, which was released in 2005. He released his fifth studio album, Animal Ambition, in 2014 and is working on his sixth studio album: Street King Immortal, scheduled for release in 2016.

During his career Jackson has sold over 30 million albums worldwide and won several awards, including a Grammy Award, thirteen Billboard Music Awards, six World Music Awards, three American Music Awards and four BET Awards. He has pursued an acting career, appearing in the semi-autobiographical film Get Rich or Die Tryin' (2005), the Iraq War film Home of the Brave (2006) and Righteous Kill (2008). 50 Cent was ranked the sixth-best artist of the 2000s, the third-best rapper (behind Eminem and Nelly), and Get Rich or Die Tryin' and The Massacre were ranked the 12th and 37th best albums of the decade by Billboard.

Bio from Wikipedia, the free encyclopedia. Photo by Pop Culture Geek (50 Cent) [CC BY 2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons.