Alexandra Karacostas is a professional astrologer based in northern California and Greece. An avid student of astrology since 1975, she has been practicing professionally since the 1980’s. Alexandra teaches and lectures nationally and abroad, while serving an international clientele. She has been on the board of directors of the Organization for Professional Astrology (OPA) since 2007, and as President from 2010-2014. She continues to serve on the OPA faculty as a Peer Group and Consulting Skills facilitator. Alexandra also serves on the editorial committee of ISAR’s journal, (International Society for Astrological Research) and on the advisory board of ANS, (The Astrology News Agency). She has written for various publications, was a columnist for The Mountain Astrologer magazine for nine years, and has contributed chapters for OPA’s books, The Professional Astrologer and the new Essential Astrology coming out soon. Alexandra also leads sacred site tours in her beloved Greece.