Book excerpt: Once the coveted knowledge of priests and kings, the ancient sciences of astrology and numerology are now joined into a simple yet revealing formula. Astrology expert Joyce reveals the hidden formula that combines these ancient sciences, and by determining their birthday number and sun sign, readers can identify their lives' hidden paths, foster balance and creativity, and create the lives they really want. Featuring biographies of hundreds of celebrities as examples, Joyce examines the life's purpose and personality traits associated with each birth date.