The founder of Starbucks shares his untold personal story - from his childhood in Brooklyn's housing projects to his rise as a business icon - and lays out his vision for how companies can improve their social impact.

The often hilarious and sometimes poignant story behind Dal LaMagna's rise in the beauty industry. By the time LaMagna graduated from the Harvard Business School, his entrepreneurial activities-including operating discotheques in drive-in theaters, working with the 1960s musical teen sensations...