The Secret Language of Birthdays: Your Complete Personology Guide for Each Day of the Year Hardcover – October 20, 2003 by Gary Goldschneider, Joost Elffers

Many have suspected that your birthday affects your personality and how you relate to others. Nineteen years and over one million copies later, The Secret Language of Birthdays continues to fascinate readers by describing the characteristics associated with being born on a particular day. The 366 personality profiles are based on astrology, numerology, the tarot, and Gary Goldschneider’s observations of more than 14,000 people. Your strengths, weaknesses, and major concerns will be illuminated while you are given practical advice and spiritual guidance. After you study your profile, it will be hard to resist examining those of family, friends, colleagues, and even celebrities.