In her book 'Shark Tales', Barbara Corcoran shares her journey of transforming a $1,000 investment into a billion-dollar business through her innovative real estate firm, the Corcoran Group. She emphasizes the importance of setting ambitious goals and creating a fun, engaging workplace to attract and retain talent, which contributed to the agency's remarkable growth. After selling her successful company for $66 million, she experienced a lack of purpose but eventually found fulfillment again by pursuing a career in media, particularly as a cohost on 'Shark Tank'.