Gary Goldschneider, Joost Elffers. The Secret Language of Birthdays: Personology Profiles for Each Day of the Year. , Studio, 1994.

Offering a two-page spread on every day of the year, a one-of-a-kind combination of astrology and numerology presents an abundance of information, including personality profiles, illustrations, meditation suggestions, and more for each day. 20,000 first printing.