Harry Edelson's mother was an illiterate Russian immigrant and his father left the family when Harry was an infant. His book begins this way: “I grew up in the poorest neighborhood in Brooklyn, which was the poorest neighborhood in New York City, and I was the poorest of the poor." But the author makes it clear he never lamented his early circumstances: “I consider myself to be very lucky. I have been happy all my life even though I started out as poor as a child could be. . . . If you want to be happy, it is all in your mind. So take control of your senses, determine to be happy, and develop a frame of mind that will make you and all those around you happy." In Positivity: How to Be Happier, Healthier, Smarter, and More Prosperous Mr. Edelson reveals his secrets and tips for success. As a person who enjoys excellent health and a wide range of knowledge, he established a successful Wall Street career in technology and investment banking and became the owner of a major business in capital investments.