Joost Elffers

The 48 Laws of Power is the first book by American author Robert Greene. The book is a bestseller, selling over 1.2 million copies in the United States, and is popular with prison inmates and celebrities.

Combining astrology, numerology, and pure psychic intuition, The Secret Language of Birthdays is a wholly unique compilation that reveals one's strengths, weaknesses, and major issues while providing practical advice and spiritual guidance. Many have suspected that your birthday affects your personality and how you …

The Secret Language of Relationships shows how astrology can craft a relationship profile between any two individuals born during any two weeks of the year. The result is an indispensable guide to getting the most out of every relationship. The bestselling companion book to the groundbreaking The Secret Language of …

This indispensable astrological text addresses the question we all ask at some point during the course of our lives: "What is the purpose of my life?" It identifies, based on birthdate, what, on a soul level, someone came into this lifetime to achieve, in other words, their karmic signature. Gary Goldschneider and …