Claude Weiss is an engineer by profession, and has practised astrology for more than 40 years. He is President of Astrodata Ltd. and author of eight astrology books. He is publisher of the astrological magazine Astrologie Heute, and co-president of SFER, a well-known astrology school in Switzerland. Claude has co-organized eight Astrology World Congresses in Switzerland and is president of the Swiss Astrological Association (SAB).