My good friend Arnold Zegarelli, a Pittsburgh hairdresser who is always reading something to expand his consciousness, recommended these books. MAN'S SEARCH FOR MEANING (Beacon Press, 2006) is Viktor E. Frankl's memoir of surviving the Nazi death camps and the lessons of spiritual survival he learned there. His theory is that our primary drive in life is the discovery and pursuit of what we find meaningful. HOW TO WIN FRIENDS AND INFLUENCE PEOPLE (Vermilion, 2007) by Dale Carnegie was first published in 1937, but its message—that financial success has less to do with professional knowledge than it does with the ability to assume leadership and arouse enthusiasm in others—is still relevant today. THE ART OF WORLDLY WISDOM (Shambhala, 2006) by Baltasar Gracian, who was born in 1601, offers 300 short paragraphs of insights, reflections and advice that are worth reading again and again. —M.D.