50 Cent has written a motivational self-help book titled Hustle Harder, Hustle Smarter - Having gone through the most and been able to stand up taller and prouder each time, 50 Cent knows a thing or two about fighting the odds - Being totally transparent, 50 Cent has shared all his failures, triumphs and lessons he learnt throughout his life 50 Cent has released a motivational book about his hustle titled Hustle Harder, Hustle Smarter. The American rapper, actor, producer, and entrepreneur is known all over the world for his undeniably lit rap game.